S. F. Tolmie
Protected Area
Lime Kiln Lighthouse Voluntary No-take
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - S. F. Tolmie offers some of Pacific Northwest's richest wreck diving. Water ranges 7-17°C, warmest July, August, September.
The S.F. Tolmie wreck in the Pacific Northwest has a particular charm, one we really appreciate on a gloomy day. Descending, the first thing you notice is the way the light filters through the green water, picking out the skeletal remains of the hull. It’s less about big fish and more about the intricate, layered ecology of a temperate wreck. We love poking around the nooks and crannies where the Plainfin Midshipman often hang out, their bioluminescent spots just visible in the gloom. Keep an eye out for the iridescent Star ascidians clinging to the metal, and the occasional Spiny Dogfish patrolling the perimeter. Our favourite is spotting the California Spot Prawns tucked into crevices – they’re surprisingly shy. The currents here can be a bit shifty, so we always suggest diving on a slack tide for the best experience. While not a coral reef explosion, Tolmie offers a quiet, contemplative dive perfect for those who appreciate the subtle beauty of a wreck reclaiming its place in the ecosystem.
Typical S. F. Tolmie Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for S. F. Tolmie
S. F. Tolmie Ocean Conditions
Monthly averages for S. F. Tolmie, 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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