Crevice (Waterbirth Island Dungeon)
Agility tunnel crawl around Waterbirth Island Dungeon that shortens local travel. Needs 81 Agility. It is one-way.
About Crevice (Waterbirth Island Dungeon)

The crevice is an Agility shortcut found within the Waterbirth Island Dungeon at the end of the first room containing giant rock crabs. An Agility level of 81 is required to enter the shortcut, which awards 10 experience.
Cut travel time on a high-level route once you meet the requirement.
- Type
Shortcut- Area
- Waterbirth Island Dungeon
- Tile
- 1853, 4406 (level 3)
What you will find
Getting there
This one is off the surface map — inside a dungeon, a cave or an upper floor. The way in from the surface is Waterbirth Island Dungeon's: “Enter” at tile 2543, 3741, then about 48 tiles inside; the map, opened on it, draws that walk, and any teleport that lands nearer.
Source
The description above is derived from this place's article on the Old School RuneScape Wiki, used under CC BY-NC-SA 3.0. Screenshots are copyright Jagex Ltd., used with the wiki's permission.