Map says there is a Marcus Munitions behind the door. " akantra 10 years ago #3. That's super easy. trukr Apr 25, 2014 @ 3:03pm. The Hyperion Info Stockade has the info you need. If it's still not uncovered you may have a bug. The Longbow has +50% Crit Damage (scale). Notify me about new: Guides. The Caustic Cavern undiscovered challenge is a Dark Souls easter egg - get to the island behind Blue or some such. 81 (The Outflow: Only spawns when Drill Rig construction projects are available. Accepted Answer. Spiderant Mix Caverns 1/1,806 #13 Skag Mix Bloodwing 1/1,786 #12 SKag Mix Orchid Cave 1/1,677 #11. Plink. For Borderlands 2: Commander Lilith & the Fight for Sanctuary on the Macintosh, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". The elemental resistance only applies to the dot and prevents one of that element from occurring on you. The first one is on the right side of the pillar (screenshot) [4]. Contains: map locations, sources in the area, and more…. Borderlands 2 Guide: Caustic Caverns Side Quest Guide. You might have to put a little fire damage. Please help. • 4 yr. After proceeding further to that entrance, you’ll find the elevator. ", which contains several references to Game of Thrones. Sci-fi. It happened to me, too. Always up to date. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. . You must be at a high enough level to make it across, as you will take a lot of damage while running across the water. If you travel north of Blue (see: Caustic Caverns Map) to the edge of the map you should be able to see an island. Questions. Go to the left corner where pointing signage in on the top, just head straight. Borderlands 2. For Borderlands 2: Psycho Pack on the PC, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". Expansions: 13 available. Reviews. Next is the hidden one, Harchek's Revenge. What you are looking for is 4 switches. For articles with similar names, see Creeper (disambiguation). lookin for some gun 72 Help. Cascade Caverns is also home to a variety of wildlife, including bats, cave crickets, and cave salamanders. I think there's another quest where you go on a treasure hunt at Caustic Caverns. The resultant caverns are now full of corrosive pools and mountains of trash. Head to the mine cart [2] through the bridge from the above screenshot. Most often encountered in Caustic Caverns and Tundra Express, Vermivorous spawns at level 51 in Ultimate Vault Hunter Mode, two levels higher than the highest leveled player in Ultimate Vault. The Poza de la Sal diapir is a closed circular depression with Cretaceous Mesozoic materials, formed by gypsum, Keuper clays, and a large extension of salt in the center with intercalations of ophite. "Caustic Caverns" is a much better Co-Op Vermi farming location as the Crystalisks will keep the Varkids busy for the group whilst watching and waiting to. Uvhm mode. $34. The low seismic activity of the area, the reduced permeability and porosity of the salt caverns, and the proximity to the Páramo de Poza. This rocky peak forms the foundation of the bandit stronghold known as Inferno Tower. - Safe and Sound is an optional mission given by Marcus Kincaid and is available once the Vault Hunters reach Sanctuary during the mission Bright Lights, Flying City. (You have to kill yourself very close to the Fast-Travel starion, because you have to respawn there) Yeah. Assassins. Doing so will. CryptoSame for me too & yes, it is a glitch. Time. 26 34. You’ll be given a big general area on the map and your goal is to find four switches in it. The Pacific Undersea Gardens was a 150-foot (45 m) vessel that was towed from the Oak Bay Marina to the waters of the Inner Harbour. Caustic Caverns, simply because enemies seem to respawn much quicker here, plus all the Threshers. Participants can test their caving abilities with short squeezes and climbs with the confidence boosting. Sawtooth Cauldron, because of the combinations of bandits and threshers (at certain points) often ends up being too much to handle. 27 50. Shortcut to the 6th. Under the acid soaked railway: 0:05In the warehous. He does nothing but laugh if any attempt to communicate with him is made, and is otherwise just a fixture seen as part of the challenge I Bet I Can Make It. It becomes available after Bright Lights, Flying City is complete. This one is easy to find. If you're talking about the mission, push the car until it can't be pushed anymore. • 4 yr. What you are looking for is 4 switches. You could also consider using one of those adaptive shields. Longbow Sniper Rifle; Blockhead Shotgun; Specific heads and skins; Blue . Hyperion. This location is called the “Guardian Ruins”. For Borderlands 2: Headhunter Pack 3 - How Marcus Saved Mercenary Day on the Macintosh, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". Tubby Spiderants have varying spawn rates depending on the location. As each Varkid can potentially evolve into a Badass version and therefore is able to become a Chubby. wellbore, and cavern) from the emergency shutdown (ESD) valve down to the cavern and facilities having significant impact to safety and integrity of the cavern system. Although these may not be the last of your troubles, as you hear something rattling ahead, like the. In the Tiny Tina DLC there is a side quest called "Winter is a Bloody Business. Another iconic Borderlands Easter egg can also be found elsewhere in Borderlands 2's Caustic Caverns. You might have to put a little fire damage. Elemental Spiderants have a higher obesity rate of 3. Caustic Caverns (1) It's a long trek to find this Symbol. Once you finish Caustic Caverns loop, you’ll climb a. If the first set of doors are closed while Vermivorus is standing near them and they are opened immediately after, she will be killed. This NPC is the objective of Security First. Vault Symbol #1/2 The first symbol can be found beside a grave behind a pillar. ""In the northwestern area of the Caustic Caverns, at the top and to the right of the train tracks, there is a hidden cave containing an easter egg referencing Minecraft, a popular independent video game. Players visiting the Caustic Caverns may have run into a friendly NPC character and a camp fire. Got to Caustic Caverns and looked up to see what undiscovered Challenge needed completed and it was Harchek's Revenge. Cheats. 7K 976K views 10 years ago. Creepers are part of the Minecraft Easter Egg in the Caustic Caverns. Go off the beaten track to discover Minecraft stone blocks. I'm aware of the popular routes/maps in which most people farm him, like Tundra Express - Farmhouse and Caustic Caverns, but I've been finding it difficult to even get an Ultimate Badass. Ow yeah thats a glitch . This easter egg involves a hidden Minecraft area in the Caustic Caverns, available after completing Chapter 9 of Borderlands 2. Also try Minecraft! – Always incendiary. Please check us out and follow us on: Twitch: htt. The Dust - This is probably the most common place where people farm Tubby enemies but not the one that I believe to be the best. " Boards. For Borderlands 2: Headhunter Pack 2 - The Horrible Hunger of the Ravenous Wattle Gobbler on the PlayStation 3, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". - there is one in the infested warehouse "or near it i forget that one was rough" - another. BNK3R Location: Thousand Cuts/The Bunker Prerequisite: "Where Angels Fear To Tread" (Story) QG: Roland Loot: ♥♥♥♥♥ - SMG The Sham - Vladof, Absorb Shield. 2. Yeah i was trying to find the power also. Step 2: Vermivorous the Invincible. " Find Safe + Kill Sanctuary squatters: 0/25. It's a late-game quest you start in Sawtooth Caldron where you assemble some pieces of a treasure map and it takes you to the Caustic Caverns. Near the Guardian ruins, on the side of a transformer located right under a bucket wheel excavator. I will attempt more observations in the future for more devel. Caustic Caverns is chromatically different with all the bright green, and being underground on top of that gives it quite the aesthetic. first is "Under the Railway" - Just go to the second or third part of the broken freeway in the ocean of ooze and it is on one of the pillars. "Lost Treasure" - Kill a bunch of bandits till it tells you to go to Caustic Caverns. Once there, head straight north until. 02 (Inside the Rustrock Cavern in Toothy Shallows) Killsaw-- 41. 3. I have taken Blue down fast, the Challenge hasn't popped or been discovered. This isn't an achievment in itself but it will help overall in getting the. The switches. For Borderlands 2: Mr. Everything in here is a lethal danger, from the. Also try Minecraft! – Always incendiary. Caustic Caverns, locked door with valve won't stay open on this character. They are tall and blocky in appearance, with a bright green and gray pixel skin. Utilize the list to SORT, FILTER, and FIND the best weapons for your build. Every. Originally posted by 0311 P. Obsessed is a Borderlands 2 achievement in Mr. With that done, now comes the hard part, as you have to follow the clues to find switches in the Caustic Caverns. I find that whenever I stop to attack I just get wrecked; Caustic Caverns has been hell. Unreachable area in Caustic Caverns? Eternal_Jehuty 11 years ago #1. I still can’t access the center of the map. It's a pain sometimes but that's what works for me. The surrounding area is carved up into various bandit encampments. By Click Fire. Torgue's Campaign of Carnage on the PlayStation 3, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". If. We have gotten a ton of ultimate varkids in caustic. You’ll be given a big general area on the map and your goal is to find four switches in it. advertisement. He has asked you to go to Sanctuary Hole so you may return the contents of his safe to him. First is the the bubbles one. The Harchek referred to in the challenge's name is a character heard in audio logs collected for the mission Perfectly Peaceful, who was killed. first is "Under the Railway" - Just go to the second or third part of the broken freeway in the ocean of ooze and it is on one of the pillars. Release: September 18, 2012. 말그대로 염산이 강을 이루는 곳이며 크리스탈리스크(Crystalisk), 바키드, 스파이더앤트, 그리고 스레셔(Thresher)들이 넘치는 진정한 마굴. Once you reach the Caustic Caverns, you can make your way to some Minecraft-esque pixelated blocks. Booth is introduced in the mission Perfectly Peaceful given by Sir Hammerlock. You must be at a high enough level to make it across, as you will take a lot of damage while running across the water. Fabled Tortoise – Blue, Caustic Caverns (mission: “Safe and Sound”) Whiskey Tango Foxtrot – Killing Chubby enemies Black Hole – Foreman, Opportunity (mission: “Hell Hath No Fury”)What are the switches in Caustic Caverns for? Borderlands 2: Commander Lilith & the Fight for Sanctuary PlayStation 4 . What you are looking for is 4 switches. I'm in the middle of a mission for Sir Hammerlock, and he asked me to go to the Caustic Caverns and kill threshers, crystaliks and spider ants. The Creeper is a creature that lives in a hidden cave in the Caustic Caverns. That's super easy. I'm exploring Caustic Caverns, but the center of the map where I delivered the minecart to for a sidequest won't fill in at all. Cult of the Vault. I can't unlock a part in the middle of the map. Once you find the unique Crystalisk monster named Blue, run north across the corrosive green waters to the small island with a lone tree out in the distance. After a couple days of resting, I was talking with Sir Hammerlock as he needed help with something. I've killed a ridiculous amount of everything else, (as well as varkid), and only three spider ants (must've been somewhere in the beginning of the. What is the undiscovered challenge in Caustic Caverns? In order to complete this challenge, a Vault Hunter must travel to the northeast corner of the Caustic Caverns, where Blue is found, stopping at the furthest of the connected islands. The goddamn beasties ambush you repeatedly, like, thresher ambush, five steps later, new ambush. The Caustic Caverns are a vast network of tunnels underneath Sanctuary’s mining berth, and the prime location of Dahl’s mining operations upon Pandora. Borderlands 2 Solitaire is a reference to Solaire of Astora in Dark Souls. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Blue 10 % Blue Pool. Angel will cut off Hyperion’s satellite support, which gives you time to place the beacon to connect to Sanctuary. Borderlands 2. advertisement. Digi. Solitaire is a non-player character in Borderlands 2. Blue Dedicated Loot Pool. See All. It is absent from the challenge list and will appear once the challenge is achieved. Contains: map locations, sources in the area, and more…. Here the main actions of the The Ice Man Cometh mission is unfold. Blue:巨型晶状体怪物,马库斯支线任务让你去寻找丢失的东西,其中拦路的一个BOSS。 掉落:寓言龟(Fabled Tortoise),超大容量护盾For Borderlands 2 on the Xbox 360, a GameFAQs message board topic titled "How do I kill Blue in Caustic Caverns on UVHM?". ago. Just gonna save you the trouble of that and. Harchek's Revenge is a challenge in the Caustic Caverns to kill the crystalisk known as Blue before any of his leg crystals regenerate. That will get you there. Remember to like, comment, and subscribeSubscribe:caverns is probably the best place to level your character, from what Ive seen the creatures there level up with you and are always your level or a few higher (caustic caverns is available after chapter nine in. Complete the fight at the gate. For Borderlands 2: Ultimate Vault Hunter Upgrade Pack 2 - Digistruct Peak Challenge on the PlayStation 3, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". Drill Rig DR-CC73. Borderlands 2 Minecraft Map Location. Posted Sep 24, 2012 by ryan-mcbride in Borderlands 2 Guides. After collecting enough Clues, return to Fast Travel and travel to Caustic Caverns. Borderlands 2. : What helps for me is that I noticed the bubbles "spawn" when you first get there in all the enemy action. These caverns were the central. The caverns maintain a temperature of 50 degrees, no matter the season in Upstate NY. The entrance is a large cavern structure filled with green crystals. . This is an easy method to spawn Vermi but it requires you to fight through 4 waves of enemies each time before the Ultimate spawns. Digi. Add this game to my: Favorite Games. 5 m). Tom takes you on a tour of the Caustic Caverns to try and find all the locations. Question about a door in the Caustic Cavern. Operating Hours: Daily 10:00 am – 4:00 pm. It becomes available after Rising Action is complete. Took myself and a full crew 2 nights of about 5 hours each session to get him to spawn, and he then glitched when we beat him and didint drop a single item. Borderlands 2 > General Discussions > Topic Details. Without a Corrosive weapon, Opportunity is pure evil. Marvel-Superfan. These are all the chests (I could find) in the Caustic Caverns location in Borderlands 2Caustic Caverns; Hallowed Hollow (DLC) Be on the lookout for Skags Spiderants Rakk Varkids and Stalkers and in “Tiny Tina's Assault on Dragon Keep” Chubby/Tubby Bones/Skeletons In UVHM Chubby’s are called Tubby’s and from my experince the higher your level the higher the chance of finding a Chubby/Tubby. gunzerker Bug Alert: Loot Box Will Not Open: A bug may prevent you from opening the weapons crate in Caustic Caverns. There are two switches right next to the door and another switch towards the west of the door inside a little shed. . suehoffmann - 8 years ago - report. 95 per child (4-11 years old)Borderlands 2 Minecraft - Easter Egg #8. Rare Spawn. If you're talking about the mission, push the car until it can't be pushed anymore. Location: 226 Cascade Cavern, Boerne, TX 78015. 3 challenges here, "I Bet I Can Make It" where you have to reach the small island across the corrosive ooze, "Ever Blow Bubbles?" where you have to use a cor. 5 × 10 8 m³ [39]. Vault Symbol #2/2. Angel will cut off Hyperion’s satellite support, which gives you time to place the beacon to connect to Sanctuary. The Blockhead is a rare drop from the Badass Creeper in the Caustic Caverns. Just to note: I done the LOST TREASURE QUEST. --- I used to be a vault hunter, till I got shot in the face. Blue cannot be fought until the player has activated the mission Safe and Sound. Sources in Caustic Caverns. UncleGeorge20 11 years ago #2. The Fridge. In a narrow corridor near the top of the ladder leading back to the area entrance from the Southeaster. Sanctuary is a city built on top of Dahl's prime mining ship of the same name, sent to Pandora to mine precious minerals from an area now known as the Caustic Caverns. We have gotten a ton of ultimate varkids in. It's part of Marcus'. Hey all. 5. This guide lists all of the vault symbols throughout the main game and DLCs of borderlands 2. first is "Under the Railway" - Just go to the second or third part of the broken freeway in the ocean of ooze and it is on one of the pillars. Time. . 2 posts, 9/24 1:59AM. I'm really inside a sinkhole. 26 44. With that done, now comes the hard part, as you have to follow the clues to find switches in the Caustic Caverns. DAHL Abandon. Contains: Map Location, Loot Pools, Drop Rates, and more…. The mission is performed, starting at Sanctuary and continuing in The Dust, Eridium Blight and Sawtooth Cauldron. Caustic Caverns, if you’ve never been here before, is home to many. First is the the bubbles one. To get around this glitch, save your game and quit, then return. >> Mission objectives update: Access top floor facility >> Vault Hunter takes an elevator up to the Varkid Ramparts. Assassins. Johnny Hurricane September 24, 2012. Answers. "Mordecai has determined that if you find where the Warrior is buried, you will find Jack. I. Within Caustic Caverns, there is a small alcove located in the very back of the small area that Fast Travel arrives in, immediately south of the vending machines and Fast Travel station. Fabled Tortoise. I went way deep into the map, died and respawned at a check point instead of the FTS. In Caustic Caverns there is an area in the top west corner where a mine track runs. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Borderlands 2 Minecraft Map Location. 1K subscribers Subscribe 7. That will get you there. The third and final way is with Zer0's B0re skill, although this also only works in Caustic Caverns as it requires crystalisks. And then when you are in the Infested Warehouse, go down to the lower level and you will find a door that will open. Discovered in 1960 by an intrepid group of college students, Natural Bridge Caverns were opened to the public in 1964 and listed on the National Register of Historic Places in 1971. I have taken Blue down fast, the Challenge hasn't popped or been discovered. jpg. Macintosh PC Xbox One. A bandit had buried some weapons taken from Old Haven, and the map shows you. A bandit had buried some weapons taken from Old Haven, and the map shows you. For Borderlands 2: Ultimate Vault Hunter Upgrade Pack 2 - Digistruct Peak Challenge on the Linux, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". I've luckily spawned him before at the Farmhouse but since then I haven't been able to spawn him. It is blocked by a gate that only opens if the Spiked Boots are placed on a pedestal to the right. Also Known As: • Borderlands 2: Ultimate Edition (US, EU, AU, JP, KO) Franchises: Borderlands. King Jeffery is a reference to King Joffery, and. What you are looking for is 4 switches. First of all, they will keep the varkids combat-active, which is required in order for them to evolve. Borderlands 2. The corrosive shore is the first that the Vault Hunter comes across in Caustic Caverns, just east of a small shack. "Lost Treasure" - Kill a bunch of bandits till it tells you to go to Caustic Caverns. He was by far the toughest of all the raid bosses. the Son of Crawmerax on the Xbox 360, a GameFAQs Q&A question titled "Where do i find the treasure quest in caustic caverns?". How do I. There are. Because Varkids have the ability to evolve into stronger versions of themselves, the Caustic Cavern is an ideal location to spawn chubby enemies. This one is easy to find. Killing five enemies of this kind will give you additional experience. Accept a mission that takes you into the "missing" map, then during that mission make a point to visit that map's Fast Travel station. I didn't try leaving and coming back, but it resets if you quit the game and reload. You need to push the minecart then you'll be able to open the door once it stop. Board Topics. Borderlands 2 is filled to the brim with quests, and one in particular—aptly titled “The Lost Treasure”—is a bit harder to solve than most. The other option is that you can quit and run all the way back up there and it will open. The Caustic Caverns open up after. 2. 4. What are the named locations in Three Horns, Tundra Express, Frostburn Canyon, Sanctuary, Opportunity, Lynchwood, The Highlands, Thousand Cuts, Wildlife Exploitation Preserve, Eridium Blight, Arid Nexus, Sawtooth Cauldron, and any other places required for their five achievements ("Arctic Explorer", "Urban Explorer", "Highlands. Blue - Quest Rewards. . It makes sense that it comes with the Incendiary feature - as it's dropped from the similarly explosive Badass. Tundra Express - Similar to the Caustic Caverns but without the chance of an instant Tubby spawn. Creepers behave identically to their Minecraft counterparts, being generally silent. Spiderants are nowhere to be found in the hole under sanctuary. "Lost Treasure" - Kill a bunch of bandits till it tells you to go to Caustic Caverns. Haven't had a chance to try one out, though. The next step is to cross the ooze north to a lone island with a dead tree on it. first is "Under the Railway" - Just go to the second or third part of the broken freeway in the ocean of ooze and it is on one of the pillars. The quest comes in several parts, and involves some situational awareness and familiarity of the Caustic Caverns, which open up after. Description: advertisement. Locate Minecraft Cave. Fires a unique 3x3 spread of fireball blocks that ricochet off of surfaces. In Caustic Caverns, go to the far eastern area of the map. Boards. joemamasan 11 years ago #1. "Lost Treasure" - Kill a bunch of bandits till it tells you to go to Caustic Caverns. Cheats. exit the map n return again , however u can turn in without open the chest . Just jump off from that elevator floor to the underground and you’ll find an entrance which leads you to the Caustic Caverns. Topic Archived; Product Deals. News. This^. By level 50, they claim to have resistance of above 50%, in addition to the generally solid stats and extra max health. 100% splash. Spiderants are nowhere to be found in the hole under sanctuary. However, there are some steps you must take in order to locate the Lost Treasure, and this article will show you how. A video showing the mysterious spawning and battle of Vermivorous the Invincible optional boss. Suck My Controller: Borderlands 2 Edition. Vault Symbol #2/2. Map says there is a Marcus Munitions behind the door. Add this game to my: Favorite Games. . Sources in Caustic. I simply left the caustic caverns and came back and it allowed me to open it. first is "Under the Railway" - Just go to the second or third part of the broken freeway in the ocean of ooze and it is on one of the pillars. yup is what i just did i quit game and continued, ran back up and it opened! jaggsta11 years ago#8. After drill. There are a few puzzles that involve sliding green crystal blocks onto. As the salt cavern is an open vessel, it offers very high deliverability. " Go to Eridium Blight Find. What you are looking for is 4 switches. Badass Creeper. . Posted by u/stevenrama - 258 votes and 121 commentsI've been having trouble with enemies like Threshers and Badass Varkids where you have to dodge a lot of projectiles. In the next area there was the second origins audio with a switch in the back of the room, but that switch. I've found at least 10 chubbies and have gotten Vermiverous the Invincible or whatever his name is twice and have gotten orange loot. From the middle of the map there is a weapon vending machine. updated Jan 30, 2020 There are Vault Symbols hidden all over Pandora. The quest comes in several parts, and involves some situational awareness and familiarity of the Caustic Caverns, which open up after *spoiler* Sanctuary is lifted into the air. Dark Souls (Caustic Caverns) 02. Once in the Caustic Caverns follow the way point. The Lost Treasure quest makes it simple to obtain not just a good weapon, but also money and experience. Mission picked up in Sawtooth Cauldron (I think) to find 4 pieces of a treasure map, then follow the clues. #4. In the NPCs category. Farm COM's while you're at it Pod Pew Pew - kill 100 varkid pods before they hatch----Tundra Express or Caustic Caverns. Sanctuary is a city built on top of Dahl's prime mining ship of the same name, sent to Pandora to mine precious minerals from an area now known as the Caustic Caverns. It should be avaiable for fast-travel. Borderlands Wiki 8,954 pages Explore New Tales from the Borderlands Tiny Tina's Wonderlands Borderlands 3 Series in: Borderlands 2 missions, Sawtooth Cauldron. He has asked you to go to Sanctuary Hole so you may return the contents of his safe to. Chubby Spiderants are called Tubby Spiderant in UVHM and have a higher spawn rate. Looks like a greater evil stopped the Dahl corporation!Protip: Let the creep. Once you can explore the Caustic Caverns (after Sanctuary moves from its location at the start of the game), make your way to the western portion of the area map where you can find a minecart that. Not because he himself was particualarly difficult in combat, but becuase he was so damn hard to spawn. Go to the left corner where pointing signage in on the top, just head straight. Caustic Caverns is definitely the best way to do it. Location: Caustic Caverns Prerequisite: "Safe & Sound" QG: Marcus Loot: Fabled Tortoise - Pangolin, Turtle Shield. . As you progress through the area you will see the safe fall and Marcus will ask you to retrieve it. This is where I found mine! I found the Varkid chubby in the "Infested Warehouse" area. Each "evolution" from a pod will cause a varkid to grow stronger and take longer before their. Board Messages. Question about a door in the Caustic Cavern. He does nothing but laugh if any attempt to communicate with him is made, and is otherwise just a fixture seen as part of the challenge I Bet I Can Make It. They appear as craggy, tri-pedal creatures that sport a large crystalline structure on each leg and two additional ones on top. TactfulFractal • We're going too slow. Safe and Sound is an optional mission in Borderlands 2 that takes place in Caustic Caverns. Unofficial soundtrack from Borderlands 2. At present, the UGS base in Jintan salt mine has already used over 30 salt caverns and stored a working gas capacity of over 5.