Not all epic dives happen in the tropics. Some of the most awe-inspiring underwater landscapes, unique marine life encounters, and crystal-clear conditions await in colder waters. While slipping into a drysuit might not sound as glamorous as donning a shorty in the Maldives, the payoff is well worth it — think pristine visibility, dramatic kelp forests, and encounters with species you won’t find anywhere else.
Whether you’re an adventure-seeker chasing something different or simply curious about diving beyond the usual coral reefs, these cold water destinations prove that “worth the chill” isn’t just a saying — it’s a promise.
Top Cold Water Diving Destinations
1. Silfra Fissure, Iceland
There’s no other dive site like it on Earth. Located in Thingvellir National Park, Silfra offers the surreal experience of diving between the North American and Eurasian tectonic plates. The glacial meltwater is so pure and filtered through volcanic rock that visibility often exceeds 100 metres.
Highlights: Unreal clarity, continental drift diving, freshwater environment.
Who It’s For: Certified divers comfortable in drysuits who want a once-in-a-lifetime dive.
2. British Columbia, Canada
The Pacific Northwest is home to some of the richest marine ecosystems in the world. Beneath the chilly waters, you’ll find giant Pacific octopus, wolf eels, plumose anemones, and kelp forests that seem endless. Sites like Barkley Sound and Vancouver Island are particularly beloved by macro photographers and cold-water enthusiasts alike.
Highlights: Abundant marine life, dramatic underwater landscapes, thriving kelp forests.
Who It’s For: Intermediate to advanced divers who love marine biodiversity and photography.
3. Scapa Flow, Scotland
A dream for wreck divers, Scapa Flow is steeped in history — the resting place of the German High Seas Fleet from World War I. The preserved warships, encrusted with marine growth, create an atmospheric underwater museum that combines history and adventure.
Highlights: World-class wreck diving, historical significance.
Who It’s For: Wreck diving enthusiasts and technical divers with drysuit certification.
4. Norway’s Arctic Circle
From the dramatic fjords of Lofoten to diving with orcas in Tromsø, Norway’s Arctic region delivers some of the most memorable dives in Europe. During winter, you can even dive beneath the Northern Lights — a truly unforgettable experience.
Highlights: Ice diving, orcas, underwater fjords, and unique light conditions.
Who It’s For: Experienced divers seeking adventure and photographers looking for rare encounters.
5. Poor Knights Islands, New Zealand
While not freezing, the Poor Knights are a great option for divers who want the richness of temperate diving without extreme cold. Expect sponge gardens, schools of kingfish, stingrays, and anemone-covered arches. Visibility can reach 30 metres, and the mix of tropical and temperate species makes every dive surprising.
Highlights: Temperate marine life, volcanic formations, vibrant sponge gardens.
Who It’s For: Recreational divers ready to explore colder water with incredible biodiversity.
Gear Tips for Cold Water Diving
- Drysuit or Thick Wetsuit: A drysuit keeps you warm and comfortable for longer dives. If you prefer a wetsuit, choose a 7mm or layer a 5mm with a hooded vest.
- Hood and Gloves: Essential for retaining body heat — 5mm gloves and a 7mm hood are ideal.
- Regulator for Cold Water: Look for environmentally sealed models designed to prevent freezing, such as the Apeks MTX-R or Scubapro MK19 EVO.
- Mask and Snug Fit: A well-sealed mask prevents leaks in colder conditions.
Who It’s For
Cold water diving is perfect for divers who:
- Want to experience unique marine life and topography.
- Prefer fewer crowds and pristine, untouched dive sites.
- Enjoy adventure travel and aren’t afraid of a little extra prep and layering.
- Already dive regularly and want to take their skills — and gear — to the next level.
Divers who’ve taken the plunge swear by it:
“It’s completely different from tropical diving — the colours are darker but richer, and the visibility can be unbelievable.” – Expedition Diver, Vancouver Island
“Silfra was surreal. I’ve never seen water that clear. I actually forgot how cold it was halfway through the dive.” – Cold-Water Convert, Iceland
Warm vs Cold Water Diving
| Feature | Warm Water | Cold Water |
|---|---|---|
| Visibility | Usually good (10–30m) | Often exceptional in extreme cold waters |
| Marine Life | Tropical fish, coral | Macro life, kelp forests, large species |
| Gear | Lightweight | Drysuit / heavier setup |
| Experience | Comfortable, relaxed | Adventurous, immersive |
| Crowds | Popular sites | Quiet, remote locations |
Thinking of giving cold water diving a try? Make sure your gear’s ready before you go.
👉 Explore our full range of drysuit, regulator, and accessories perfect for cold-water diving — available now at Mike’s Dive Store.
FAQs
Q: Do I need a
drysuit certification for cold water diving?
Most dive centres require a drysuit certification for safety and comfort, especially in temperatures below 15°C.
Q: Is
cold water diving only for advanced divers?
Not necessarily. Many cold-water sites offer conditions suitable for open water divers — just ensure proper exposure protection and training.
Q: What are the best months to dive in cold water?
Winter often brings the best visibility, though conditions vary by region. Always check local recommendations before planning your trip.
Q: How do I prepare my
regulator for
cold water diving?
Use a regulator environmentally sealed for cold temperatures to prevent free-flow or freezing. Regular maintenance is also key.
Final Thoughts
Cold water diving isn’t just a challenge — it’s an opportunity to rediscover why you fell in love with diving in the first place. From ethereal freshwater dives in Iceland to wrecks steeped in history off the Scottish coast, these destinations prove that adventure doesn’t end where the warm water does.
So next time you’re planning your dive calendar, swap palm trees for icebergs — and see just how breathtaking the cold can be.
