Hazard spot
Raz de Sein and Chenal du Four
Rock, current and Atlantic swell in a tight space, with a window of about an hour. Miss it and it is better to wait half a day.
- Cause
- Strong current and cross seas
- Main season
- all year
- Position
- 48° 09,0' N 004° 51,0' W
On the map
The map shows this spot. You can pan, zoom and click the other spots.
How the place works
Rock, current and Atlantic swell in a confined space. The usable window is about an hour around slack water, and missing it means waiting six. With wind against tide and swell running in, the passage stops being a question of experience and becomes a question of the clock, even for seaworthy boats.
What breaks there
Cases are rare but serious: loss of steering, dismasting, hitting rock while trying to use the current. Brittany is also thinly populated, so salvage and the road to a yard are long.
What this means for your policy
Check how far salvage costs extend and whether they are paid in addition to the sum insured or out of it. On this coast that is the difference between a repaired boat and a written-off one.
Read this in fullCruising range
This spot lies in the cruising range the calculator lists under this step: EU inland waters
Calculate a premium for this cruising range
