Swordfish Island
Protected Area
Lower Dungeness
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Swordfish Island offers some of Pacific Northwest's richest reef diving. Water ranges 7-17°C, warmest July, August, September.
Swordfish Island always feels like a proper adventure. Getting there usually means a boat ride through some choppy water, but the reward is worth it. We love dropping into the kelp forests here, especially on a sunny day when the light filters down through the fronds, creating this ethereal green glow. It’s cool and calm once you’re down there, and the giant octopus population is simply incredible. We’ve found ourselves just watching one for twenty minutes, mesmerized by the way it flows over the rocks. Beyond the octopuses, keep an eye out for the California spot prawns, often tucked into crevices, and the surprisingly graceful big skates gliding across the sandy patches. Up top, the birdlife is equally impressive; we often spot Bald Eagles circling overhead while preparing to dive. Our best tip? Go on a slack tide, if you can time it. The currents here can pick up, making it a bit of a workout, but on a calm day, it’s a truly peaceful dive. This spot suits divers who appreciate a cooler water environment and a chance to really observe individual creatures rather than just speed through.
Typical Swordfish Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
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 Swordfish Island
Swordfish Island Ocean Conditions
Monthly averages for Swordfish Island, 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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