Munkholmen Island
Trondheim Fjord · Norway
A small islet 2 km offshore from Trondheim city centre, Munkholmen offers accessible cold-water diving on boulder slopes descending to 20 m, with old monastery foundations creating a complex of sheltered crevices that harbour wolf fish, cusk, and large common seals. The combination of historical structure and marine life makes it the most beginner-friendly cold-water dive in the Trondheim area — and the ferry runs in summer, so shore-based access is feasible.
Conditions
Depth
3 to 22 m
Open water and up
Current
Usually still
Can pick up on the edge
Visibility
6 to 12 m
Clearest in the calm season
Water
3 to 18°C
Drysuit required
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 3 | 3 | 3 | 4 | 6 | 10 | 13 | 14 | 12 | 8 | 5 | 4 |
| Vis (m) | 10 | 10 | 10 | 8 | 8 | 6 | 6 | 6 | 8 | 10 | 10 | 10 |
| Current | Still | Still | Still | Still | Gentle | Gentle | Still | Still | Still | Still | Still | Still |
Your chances of seeing each animal
Hooded Crow
Last confirmed Jul 4, 2026 · 104 records
Almost always
Nearly every dive
Mallard
Last confirmed Jun 21, 2026 · 54 records
Almost always
Nearly every dive
Fieldfare
Last confirmed Jun 19, 2026 · 57 records
Almost always
Nearly every dive
Common Seal
Last confirmed Feb 5, 2026 · 19 records
Very likely
Most dives
Edible Crab
Last confirmed Jan 18, 2026 · 6 records
Very likely
Most dives
Butterfish
Last confirmed May 4, 2025 · 2 records
Likely
About 6 in 10 dives
Cusk
Expected
Known here, not yet in recent logs
Gear