Saniboch is a tribesman who guards the entrance to Brimhaven Dungeon. Players must pay 875 coins to him to gain entrance, or a one-off fee of 1,000,000 coins (equivalent to 1,143 entry fees) for permanent free access. An axe is needed in order to navigate the dungeon. Only players who are prepared should enter, as it is very dangerous and contains some very powerful monsters, the strongest of which are Steel dragons.
Saniboch is likely not the first guard of the dungeon. According to Herman's book, the Wise Old Man once ventured onto Karamja when he was young, where he advised one of the island's tribes to charge for entry to the dungeon. In addition, Saniboch mentions that he has an employer.
- Saniboch is the solution to the hard cryptic clue: Gold I see, yet gold I require. Give me 875 if death you desire. Players will need to solve a puzzle box.
- He has a sister named Banisoch.
- Players have the option of telling Saniboch that they are impressed that a tree is growing on the entrance. Saniboch will say that his employer told him that is an uncommon tree called the Fyburglars tree.