Pacific Northwest, United States

    Wreck of HMCS Annapolis

    Best months: Sep–Jan

    Why dive here

    With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Wreck of HMCS Annapolis offers some of Pacific Northwest's richest wreck diving. Water ranges 7-17°C, warmest July, August, September.

    Best timeSep–Jan
    WetsuitA drysuit
    Marine lifeHumpback Whales, Orcas and Seals & Sea Lions · 35+ species recorded
    Water7-17°C · warmest July, August, September
    CharacterWreck dive

    The ‘Unknown’ wreck, often referred to as the Atlantic, gives you a proper taste of Scapa Flow without the depth demands of the bigger German High Seas Fleet ships. We love its approachable depth, usually around 20-25 metres, meaning longer bottom times and more opportunity to poke around. What you’ll find is a cargo steamer, probably sunk during the scuttling, sitting upright and surprisingly intact. Dropping down, the first thing you notice is the sheer scale of the hold. We’ve spent many dives finning through, torch beams catching the eerie, shadowed corners where Light-bulb sea squirts glow faintly. Look closer on the bulkheads and you’ll often spot the quirky little Blade Shrimp, perfectly camouflaged. The deckhouse is a favourite, still recognisable with portholes offering glimpses into what were once crew quarters. On the deck, Common sea stars cling to every surface, and the occasional inquisitive harbour porpoise might even make a fly-by if you’re lucky. This wreck is perfect for those getting their feet wet with Scapa’s history, or anyone who appreciates a well-preserved piece of maritime past. It’s less about penetration, more about the atmospheric exploration of a working ship frozen in time.

    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.

    Today06:2717:3511h 7m daylightGolden hour 16:51

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    Conditions

    Ocean conditions, forecast and tides for Wreck of HMCS Annapolis

    Wreck of HMCS Annapolis Ocean Conditions

    Monthly averages for Wreck of HMCS Annapolis, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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