Living Rock Cavern
The Living Rock Caverns is an area was designed for players with high levels in Fishing and Mining. There are no skill requirements necessary to enter this area. However, it is a dangerous area, as aggressive level 92 living rock creatures guard the resources, so training skills here may very well be interrupted regularly and dangerous. For players who have low combat levels or plan to spend a long time in the cavern, it may be advised to train with other players.
Mining
Mining in the Living Rock Caverns requires levels 70, 73, and 80 Mining for concentrated coal deposits, living rock remains, and concentrated gold deposits, respectively. The concentrated gold and coal deposits are special rocks that yield five ores at a time. A safe-spot can also be utilised at the southernmost gold deposit by standing against the eastern side of the rock against the wall. Other "rocks" found in the cavern are the remains of the living rock creatures. These are found directly after killing creatures. The remains are minable by the player who killed the creature immediately and by other players after a one minute delay. The remains contain between five and 20 living minerals, which are used as bait for fishing rocktails.
Fishing
Two types of fish can be caught in the Living Rock Caverns: cavefish and rocktail.
Cavefish
Cavefish require a fishing level of 85 and give 300 Fishingbase experience per catch using a fishing rod (in the inventory or tool belt) and fishing bait. Cavefish heal 22 hitpoints each (up to a player's maximum life points) and give a +2 boost to either Attack, Strength, Defence, Ranged, or Magic. Cavefish require a Cooking level of 88 to cook for 214 Cooking base experience.
Rocktail
Rocktail require a fishing level of 90 and gives 380 Fishing base experience per catch using a fishing rod (in the inventory or tool belt) and living minerals. Rocktails heal 23 health and can heal up to 10% higher than a player's maximum life points, making it among the best single-bite foods in the game. Rocktail requires a Cooking level of 93 to cook for 225 Cooking base experience.
Monsters
The caverns are home to the living rock creatures. The caverns are populated with living rock protectors and living rock strikers, both level 92 monsters who use melee, along with ranged for the latter. They can be assigned as a potential slayer assignment by Kuradal. In addition, a level 95 living rock patriarch spawns erratically every two hours, which can be killed for a small range of guaranteed loot.
Unlike other monsters, the living rock creatures only start their spawn timer when their remains are successfully mined. However, due to the low price of living minerals, it is typically not worth mining their remains and more profitable to instead simply kill more living rock creatures, since they will automatically despawn after a set time.