100 ft Rock is a north-facing boat dive in North Puget Sound. Two pnwdiving reports from 2025 recorded 20–20 ft of visibility. For the site briefing, see dive planning for 100 ft Rock.
Site Resources & Tools
Recent Visibility Reports
Dive report for 8/16/25
- Visibility
- A hazy 20 feet (incoming tide)
Another great couple of dives to 100’ rock….lots of schools of fish and many critters in all the cool surrounding clay walls.
pnwdiving.com and Scuba Jess
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Dive report for 8/9/25
- Visibility
- A hazy 20 feet
Great viz in a very low tide this morning
pnwdiving.com and Scuba Jess
ReactComment
Been a long time since I've done that one or heard of anyone doing it now that you can't do it by shore! By shore was always sketch... Cool how you can see the rock on the bottom scan!