Les Ecrehous Reef
Dive site
Les Ecrehous is a remote reef system 10 km northeast of Jersey, a UNESCO-designated marine area with some of the clearest water in the Channel Islands. The granite pinnacles and ridges drop from the surface to around 25 metres through rich cold-water communities: dense dead men's fingers, jewel anemones in vivid colour patches, and plumose anemone gardens. Grey seals are resident and regularly interact with divers on the shallower sections. The tidal flow between the reef structures creates drift dive opportunities over mixed kelp and rock terrain. Access requires a boat trip of 40 minutes or more, which keeps diver pressure low.
Conditions
Depth
3 to 25 m
Open water and up
Current
Usually gentle
Can pick up on the edge
Visibility
8 to 18 m
Clearest in the calm season
Water
9 to 19°C
5mm or 7mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 9 | 9 | 9 | 10 | 12 | 15 | 17 | 17 | 16 | 13 | 11 | 9 |
| Vis (m) | 5 | 5 | 5 | 6 | 8 | 8 | 8 | 8 | 7 | 6 | 5 | 5 |
| Current | Strong | Strong | Strong | Moderate | Moderate | Gentle | Gentle | Gentle | Moderate | Moderate | Strong | Strong |
Field journal
No sightings recorded here yet.
Upload the first sightingDived here recently?
Your sighting helps us track reef health at this site in real time.
Submit a sightingPlanning to dive Les Ecrehous Reef?
Your underwater photos help scientists track reef health here in real time.
What to photograph: fish and marine life, coral (especially anything pale or unusual), anything unexpected.
How to capture it: shoot JPEG, keep location on, note your depth and the date.
Dived Les Ecrehous Reef recently?
Your photos help track reef health.
Up to 10 photos · JPEG or PNG · max 20 MB each
📷
Drag photos here, or tap to select
GPS in your photo will auto-detect the dive site
Gear