Perk Chart Picture
Vault Boy swimming in a pool.
Aquaboy has 2 ranks:
- Rank 1: Water is your ally. You no longer take radiation damage from swimming and can breathe underwater. (Requires: END 5)
- Rank 2: You become totally undetectable while submerged. (Requires: Level 21, END 5)
- This perk will let you stay underwater for more time before needing to replenish your oxygen