Best Aug
Åland Islands
Finland
Windjammer-era sailing ships and wartime wrecks kept intact in the Baltic

Region
97 curated dive destinations across 23 countries including Antarctica and Argentina in Cold Water. Conditions peak around Jul and Aug.
Anglesey · photo David Medcalf
Common encountersSeals & sea lionsNudibranchsOctopus & cuttlefishMacro crittersFreshwater fish
Cold-water diving trades warmth for things the tropics cannot offer. Silfra in Iceland is a rift between two tectonic plates with visibility in the tens of metres, snorkellers swim alongside orca pods hunting herring in the fjords off Skjervøy, and divers go beneath icebergs with penguins and leopard seals on the Antarctic Peninsula. Water here runs from below freezing to around 20 °C.
Britain and northern Europe are wreck country. The German battleships scuttled at Scapa Flow in 1919 still lie on the seabed, the Rondo in the Sound of Mull stands almost vertical from 15 m to 50 m, and the brackish water of the Gulf of Finland keeps three-hundred-year-old ships standing with their masts up. Grey seals are the other draw, approaching divers at the Farne Islands and following them around Lundy Island.
One destination per theme, picked from the species, dive types, access and site records on each destination page.
Wrecks
United Kingdom
Its dive sites take in 9 wrecks, including Alex Van Opstal and SS British Inventor.
Big animals
Norway
Orcas, whales, dolphins and 1 more big species are all on its species list, the most of any destination here.
Beginners
Germany
Rated for beginners, with mild current and shore diving. Best Jul–Aug.
Macro
United States
Muck and macro diving is one of its main dive types, with octopus & cuttlefish, nudibranchs and macro critters on the species list.
Liveaboards
United Kingdom
Dived only from liveaboards, best Jun–Aug; whales and orcas are on its species list.
The busiest stretch is July–August: in August, 47 of the 97 destinations here are in peak season.
The leanest months are April and November, when Lago Nahuel Huapi & Bariloche and Stockholm Archipelago & Dalarö are still at their best.
Gothenburg Archipelago, Gotland & Fårö, Gulen & the Sognefjord and 17 more rate good or better in every month.
| Month | Prime | Good |
|---|---|---|
| Jan | 14 | 24 |
| Feb | 15 | 22 |
| Mar | 12 | 34 |
| Apr | 10 | 46 |
| May | 16 | 59 |
| Jun | 35 | 50 |
| Jul | 42 | 43 |
| Aug | 47 | 37 |
| Sep | 31 | 55 |
| Oct | 11 | 60 |
| Nov | 10 | 43 |
| Dec | 13 | 26 |
Tap a column heading to sort.
| Åland Islands Finland | Aug | 1–17°C | Advanced | — | Day boat |
|---|---|---|---|---|---|
| Anglesey United Kingdom | Apr–Oct | 8–16°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Antarctic Peninsula Antarctica | Dec–Feb | -1–2°C | Advanced | Penguins | Liveaboard |
| Aran Islands Ireland | Jun–Aug | 10–16°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Attersee Austria | Dec–Feb | 3.5–21.1°C | Intermediate | Freshwater fish | Shore |
| Baltimore & Cape Clear Island Ireland | May–Dec | 10–16°C | Intermediate | Seals & sea lions | Day boat |
| Barkley Sound Canada | Sep–Oct | 8–19°C | Intermediate | Seals & sea lions | Day boat |
| Belgian North Sea — Nieuwpoort Belgium | May–Oct | 7–18°C | Advanced | — | Day boat |
| Bell Island & Conception Bay Canada | Jun–Aug | 0–15°C | Advanced | Whales | Shore, Day boat |
| Bohuslän & Gullmarsfjord Sweden | Jul–Sep | 2–18°C | Intermediate | Macro critters | Shore, Day boat |
| Bornholm Denmark | Jun–Sep | 2–19°C | Intermediate | Macro critters | Shore, Day boat |
| British Columbia — Browning Pass Canada | Jun–Sep | 7–13°C | Advanced | Octopus & cuttlefish | Day boat, Liveaboard |
| Cape Ann & Stellwagen Bank United States | Apr–Oct | 4–19°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Capernwray & the Lake District United Kingdom | Mar–Nov | 5–15°C | Beginner | Freshwater fish | Shore |
| Chausey Islands & Granville France | Aug–Sep | 9–19°C | Intermediate | Octopus & cuttlefish | Day boat |
| Comox Valley & Hornby Island Canada | Nov–Feb | 8–10°C | Intermediate | Seals & sea lions | Day boat |
| Cornwall — Padstow & the Manacles United Kingdom | May–Sep | 8–19°C | Intermediate | Blue & mako sharks | Shore, Day boat |
| Discovery Passage & Campbell River Canada | Dec–Feb | 7–15°C | Advanced | Octopus & cuttlefish | Day boat |
| Donegal Coast — Downings, Tory & Arranmore Ireland | Mar–Nov | 9–15°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Dover & Folkestone Wrecks United Kingdom | May–Oct | 8–18°C | Advanced | Seals & sea lions | Day boat |
| Dublin Bay Ireland | Jun–Aug | 9–15°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Farne Islands United Kingdom | Jun–Sep | 6–15°C | Intermediate | Seals & sea lions | Day boat |
| Faroe Islands | Jun–Aug | 6–12°C | Advanced | Seals & sea lions | Shore, Day boat |
| Fehmarn Germany | Jul–Aug | 2–18°C | Beginner | — | Shore, Day boat |
| Feldberger Seenlandschaft Germany | Mar–Nov | 4–20°C | Beginner | Freshwater fish | Shore, Day boat |
| Gdańsk Bay & Gdynia Poland | Jul–Aug | 2–19°C | Intermediate | — | Shore, Day boat |
| Gothenburg Archipelago Sweden | Dec–Jun | 3–19°C | Intermediate | Seals & sea lions | Day boat |
| Gotland & Fårö Sweden | Year-round | 2–19°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Gulen & the Sognefjord Norway | Jun–Jul | 6–22°C | Intermediate | Nudibranchs | Shore, Day boat |
| Gulf of Finland Finland | Jun–Aug | 1–18°C | Advanced | Macro critters | Day boat |
| Haida Gwaii Canada | Aug | 6–12°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Halifax & St Margaret's Bay Canada | Aug–Sep | 1–17°C | Intermediate | — | Shore |
| Hel Peninsula Poland | Apr–Dec | 2–19°C | Advanced | — | Day boat |
| Horseshoe Bay & Howe Sound Canada | Nov–Feb | 7–11°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Isle of Skye United Kingdom | Year-round | 7–15°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Isles of Scilly United Kingdom | May–Sep | 9–19°C | Intermediate | Seals & sea lions | Day boat |
| Isles of Shoals United States | May–Oct | 4–18°C | Intermediate | Seals & sea lions | Day boat |
| Juneau & Auke Bay United States | Jun–Aug | 4–10°C | Intermediate | Seals & sea lions | Shore |
| Karlskrona & the Blekinge Archipelago Sweden | Jul–Aug | 2–18°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Kilkee & the Clare Coast Ireland | Aug–Sep | 10–16°C | Intermediate | Dolphins | Shore, Day boat |
| Kinlochbervie & the North-West Highlands United Kingdom | Mar–Nov | 7–13°C | Intermediate | Nudibranchs | Shore, Day boat |
| Kinsale & Old Head Ireland | Mar–Aug | 9–18°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Klaipėda & Curonian Spit Lithuania | Jul–Aug | 1–20°C | Advanced | — | Day boat |
| Kola Peninsula & the Barents Sea Russia | Jun–Aug | 2–11°C | Intermediate | Nudibranchs | Day boat |
| Koster Islands & Kosterhavet Sweden | Jul–Mar | 3–19°C | Intermediate | — | Day boat |
| Kreidesee Hemmoor Germany | Apr–May | 5–18°C | Intermediate | Freshwater fish | Shore |
| Kristiansund & the Atlantic Ocean Road Norway | Jun–Sep | 5–17°C | Intermediate | Nudibranchs | Day boat |
| Lago Nahuel Huapi & Bariloche Argentina | Nov–Apr | 2–14°C | Intermediate | Freshwater fish | Shore, Day boat |
| Lake Baikal — Listvyanka & Olkhon Russia | Feb–Mar | 1–16°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Lake Bled & Lake Bohinj Slovenia | Jun–Oct | 2–19°C | Beginner | Freshwater fish | Shore, Day boat |
| Lake Constance Germany | Apr–Oct | 4–22°C | Intermediate | Freshwater fish | Shore, Day boat |
| Lake Shikotsu Japan | Jul–Aug | 1–20°C | Intermediate | Freshwater fish | Shore |
| Lake Vättern Sweden | Mar–Oct | 2–17°C | Intermediate | Freshwater fish | Shore, Day boat |
| Lillebælt & Middelfart Denmark | May–Sep | 3–18°C | Intermediate | Nudibranchs | Shore, Day boat |
| Loch Fyne & Loch Long United Kingdom | Year-round | 7–15°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Lofoten Islands Norway | Jun–Aug | 5–12°C | Intermediate | Nudibranchs | Day boat |
| Lundy Island United Kingdom | Jun–Sep | 8–17°C | Intermediate | Seals & sea lions | Day boat |
| Malin Head Ireland | Jun–Aug | 8–15°C | Advanced | Seals & sea lions | Day boat |
| Nanaimo & Gabriola Island Canada | Sep–Mar | 6–13°C | Intermediate | Octopus & cuttlefish | Day boat |
| Narvik Norway | Jun–Aug | 3–12°C | Advanced | Macro critters | Shore, Day boat |
| Öland & the Kalmar Strait Sweden | May–Dec | 0–21°C | Intermediate | Freshwater fish | Shore, Day boat |
| Øresund & Isefjord Denmark | Mar–May | 2–18°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Oslofjord — Nesodden & Fornebu Norway | Sep–Mar | 3–18°C | Intermediate | — | Shore |
| Pembrokeshire & Skomer United Kingdom | Year-round | 8–17°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Plymouth Sound & HMS Scylla United Kingdom | Jul–Sep | 8–19°C | Intermediate | Blue & mako sharks | Shore, Day boat |
| Puget Sound United States | Oct–Feb | 7–13°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Reykjanes Peninsula — Garður & Flekkuvík Iceland | Jul–Aug | 6–11°C | Intermediate | Seals & sea lions | Shore |
| Sakhalin & Moneron Island Russia | Jul–Aug | 2–22°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Saltstraumen Norway | May–Sep | 4–14°C | Advanced | Nudibranchs | Shore, Day boat |
| San Juan Islands United States | Year-round | 9–12°C | Advanced | Octopus & cuttlefish | Shore, Day boat |
| Scapa Flow United Kingdom | Sep–Oct | 7–13°C | Advanced | Seals & sea lions | Day boat, Liveaboard |
| Seward & Resurrection Bay United States | Jun–Sep | 2–13°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Shakotan Peninsula Japan | Jul–Sep | 4–22°C | Beginner | Seals & sea lions | Day boat |
| Shetland United Kingdom | Jun–Aug | 7–15°C | Advanced | Whales | Liveaboard |
| Shiretoko Drift Ice Japan | Feb | -1–4°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Silfra Iceland | May–Sep | 2–4°C | Intermediate | Freshwater fish | Shore |
| Sinyavino Lake & Yantarny Russia | May–Sep | 2–19°C | Beginner | — | Shore |
| Skarnsundet & the Trondheim Fjord Norway | Sep–Oct | 4–12°C | Advanced | Nudibranchs | Shore, Day boat |
| Skjervøy — Orca Migration Norway | Nov–Jan | 4–13°C | Intermediate | Orcas | Day boat |
| Sochi & Lazarevskoye Russia | Mar | 7–29°C | Beginner | Dolphins | Shore, Day boat |
| Sound of Mull United Kingdom | Jun–Sep | 7–14°C | Advanced | Seals & sea lions | Day boat |
| South Funen Archipelago Denmark | Apr–Nov | 2–18°C | Intermediate | Macro critters | Shore, Day boat |
| St Abbs & Eyemouth United Kingdom | Jun–Sep | 6–15°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Stockholm Archipelago & Dalarö Sweden | Sep–May | 1–19°C | Intermediate | — | Shore, Day boat |
| Stoney Cove United Kingdom | Oct–Jan | 4–18°C | Intermediate | Freshwater fish | Shore |
| Strangford Lough United Kingdom | Jun–Nov | 7–15°C | Intermediate | Octopus & cuttlefish | Day boat |
| Strýtan Iceland | May–Aug | 3–10°C | Advanced | Seals & sea lions | Day boat |
| Svalbard Norway | Jun–Aug | -2–6°C | Advanced | Seals & sea lions | Liveaboard |
| Tollensesee & Neubrandenburg Germany | Jun–Nov | 4–24°C | Intermediate | Freshwater fish | Day boat |
| Ushuaia & the Beagle Channel Argentina | Jun–Aug | 2–10°C | Intermediate | Seals & sea lions | Shore, Day boat |
| Väderöarna Sweden | Jun–Aug | 3–18°C | Intermediate | Seals & sea lions | Day boat |
| Verzasca Valley Switzerland | Jun–Aug | 6–14°C | Intermediate | Freshwater fish | Shore |
| Vladivostok & Peter the Great Bay Russia | Aug–Sep | 0–20°C | Intermediate | Octopus & cuttlefish | Day boat |
| Weymouth & Portland United Kingdom | Jun–Sep | 7–18°C | Intermediate | Nudibranchs | Shore, Day boat |
| White Sea — Chupa Bay & Nilmoguba Russia | Feb–Apr | -1–14°C | Intermediate | Nudibranchs | Day boat |
| Whittier & Prince William Sound United States | Mar–May | 2–13°C | Intermediate | Octopus & cuttlefish | Shore, Day boat |
| Zeeland — Oosterschelde & Grevelingen Netherlands | Apr–Jun | 4–20°C | Intermediate | Octopus & cuttlefish | Shore |
97 guides
385 named sites · 94 destinations