Scapa Flow, Orkney, United Kingdom
    Whiteness Head

    Wreck of shipwreck possibly the Clan Macdonald

    Good diving all year

    Protected Area

    Whiteness Head

    Why dive here

    With 140+ marine species recorded in the area - including blue whales, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - Wreck of shipwreck possibly the Clan Macdonald offers some of Scapa Flow, Orkney's richest wreck diving. Water ranges 8-14°C, warmest July, August, September.

    Best timeYear-round
    WetsuitA drysuit
    Marine lifeBlue Whales, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 140+ species recorded
    Water8-14°C · warmest July, August, September
    CharacterWreck dive
    StandoutRich in charismatic marine life

    Diving the USS Philadelphia isn’t about huge pelagics or colourful reef fish; it’s about touching history. This isn't just a pile of timbers; it’s an American gunboat from 1776, remarkably preserved in the cold freshwater of Lake Champlain. When you descend, the visibility can stretch, letting you pick out details like the cannon still resting on its mount, or the intact hull planks. We particularly love the bow section, where you can almost picture the crew peering out. Our favourite time to dive it is early morning, before any potential boat traffic kicks up the sediment. The wreck itself has become home to a unique mix of freshwater species. You’ll spot schools of yellow perch darting through the gunports, American eels snaking through the decking, and maybe even a fat sleeper lurking in the darker corners. It’s a quiet, contemplative dive, a genuine privilege for anyone who appreciates maritime history and a very different kind of shipwreck.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today06:4217:2610h 44m daylightGolden hour 16:32

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    Conditions

    Ocean conditions, forecast and tides for Wreck of shipwreck possibly the Clan Macdonald

    Wreck of shipwreck possibly the Clan Macdonald Ocean Conditions

    Monthly averages for Wreck of shipwreck possibly the Clan Macdonald, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (58.64, -3.16) (8km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    13°C

    55°F · Range: 11.4–13.8°C

    Air Temperature

    10°C

    50°F

    Wind Speed

    9.26 m/s

    18.0 knots

    Atmospheric Pressure

    1005.3 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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