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Underwater Tunnel

Dungeon · Members · in Harmony Island

For an Ironman

Underwater Tunnel is a dungeon in Harmony Island.

Achievement diary: Morytania diary (its tasks and rewards cover this area)

Getting in

No quest or skill needed to enter beyond what Harmony Island needs.

Where it is, entry requirements, shops and quest starts (fetched 2026-10-09) checked against the Old School RuneScape Wiki (CC BY-NC-SA 3.0). Requirements are game facts; the descriptions here are our own.