Silfra Fissure
Silfra Fissure · Iceland
Crack between the North American and Eurasian tectonic plates filled with crystal clear glacial meltwater. Visibility regularly exceeds 80 m. You drift between two continents — at points the gap is narrow enough to touch both walls.
Conditions
Depth
7 to 18 m
Good for beginners
Current
Usually gentle
Can pick up on the edge
Visibility
70 to 100 m
Clearest in the calm season
Water
2 to 5°C
Drysuit required
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | 2 |
| Vis (m) | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
| Current | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Redwing
Last confirmed Jul 3, 2026 · 119 records
Almost always
Nearly every dive
Greylag Goose
Last confirmed Jul 4, 2026 · 195 records
Almost always
Nearly every dive
Harlequin Duck
Last confirmed Jun 28, 2026 · 57 records
Very likely
Most dives
Red-Throated Loon
Last confirmed Jun 21, 2026 · 33 records
Likely
About 6 in 10 dives
Arctic char
Last confirmed May 15, 2026 · 8 records
Sometimes
About 1 in 3 dives
Three-spined stickleback
Expected
Known here, not yet in recent logs
Marimo algae
Expected
Known here, not yet in recent logs
Gear
Basic kit
For this site