Swamp gas

The Lumbridge Swamp Caves are a dungeon filled with a variety of monsters and Slayer monsters, located beneath Lumbridge Swamp.

There are three entrances to the caves:

• From the swamp near the candle seller, requiring a rope to enter. After one rope has been used, further ropes are not required.
• Directly south from the Lumbridge castle cellar. You must start The Lost Tribe to gain access this way. A pickaxe is needed to enter for the first time.
• From the minigame Tears of Guthix, which is in its own cave branching off from the Lumbridge Swamp Caves.

The caves require a light source, unless the player has lit a fire of eternal light near the rope entrance. If the player is within 3 tiles of the rope entrance from the Lumbridge swamp without a light source, they will automatically climb up to escape. Minimum recommended items include a light source with tinderbox, rope, spiny helmet and antipoison.

A Dwarf multicannon can be used in the caves.

• You can net fish for giant frog spawn in these caves. You will need 33 Fishing to catch them.

• In the north-west and the south-middle sections of the cave, an open light source (such as a candle, torch or oil lamp) can ignite dangerous swamp gas, resulting in an explosion, dealing 12 damage and extinguishing the light source. You will need a tinderbox to relight it.
• Upon falling through a trapdoor in the Dorgesh-Kaan mine, the player will wash up in a pool near the northern entrance, extinguishing the light source.
• There are two stepping stone obstacles. Failing a stepping stone obstacle will extinguish the player's light source.
• Wall beasts are located throughout the cave, often occupying narrow corridors. To avoid them, simply stop one square behind the hole in the wall and run past them.
• If you enter the cave without a light source you will get a warning in your chat stating: "You hear tiny insects skittering over the ground...". After a few moments another warning states: "Tiny biting insects swarm all over you!" and you will rapidly take damage.

• Tears of Guthix quest and minigame
• The Lost Tribe quest is involved (when you incorrectly navigate the maze, you can end up in the caves)
• Another Slice of H.A.M. is loosely affiliated
• Wanted whilst chasing Solus Dellagar
• Death to the Dorgeshuun is involved (after a H.A.M. member catches you and Zanik listening to a secret meeting)

• Juna - the guardian of the Chasm of Tears