100 Foot Rock
Protected Area
Brackett's Landing Shoreline Sanctuary Conservation Area
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - 100 Foot Rock offers some of Pacific Northwest's richest diving. Water ranges 7-17°C, warmest July, August, September.
100 Foot Rock, just as the name suggests, offers a deep dive along a substantial rock wall. You’ll find typical Pacific Northwest residents here: plenty of anemones, the occasional crab, and rockfish tucked into crevices. It's a solid choice for experienced divers comfortable with colder water and longer bottom times looking for a straightforward wall dive. Visibility can swing dramatically, so checking conditions is always a good idea.
Safety Notes
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Nearest Dive Centres to 100 Foot Rock
Dive shops near 100 Foot Rock
Edmonds Underwater Sports
Evergreen Dive Service
Underwater Sports
Discount Divers
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Underwater Sports
Reviews for 100 Foot Rock
Conditions
Ocean conditions, forecast and tides for 100 Foot Rock
100 Foot Rock Ocean Conditions
Monthly averages for 100 Foot Rock, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)
October Averages
Sea Temperature
11°C
53°F · Range: 9.6–11.4°C
Air Temperature
11°C
51°F
Current Speed
3.16 cm/s
Direction: E (108.4°)
Salinity
23.61 PSU
Wind Speed
1.8 m/s
3.5 knots
Atmospheric Pressure
1018.3 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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