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6 nautical miles from a shelter: how far can I go with my licence and my safety kit?

Two rules set how far you may go from the coast in France: your licence and the safety equipment on board. The stricter one applies.

In one minute with Cap Calme, free and without an account: See my limit on the map

  • Coastal licence (French permis côtier): up to 6 nautical miles from a shelter.
  • Offshore extension: no distance limit from the licence.
  • No licence: allowed on a sailing boat, or on a motorboat of 6 hp (4.5 kW) or less.
Map of the zone 6 nautical miles from a shelter on the Var coast, from Cassis to Porquerolles, drawn by Cap Calme as a dashed line.
Example: the zone 6 miles from a shelter between Cassis and Porquerolles (Var). It is an estimate based on known harbours and anchorages; yours depends on your harbour, licence and safety kit. See my limit on the map

French rules (Division 240) also set four safety kit levels: basic up to 2 nm from a shelter, coastal up to 6 nm, semi-offshore 6 to 60 nm, offshore beyond. With basic kit you stay within 2 nm, whatever your licence.

No licence is needed to sail a sailing boat at sea, even with an auxiliary engine. Exception: a sailing boat with little sail for its weight (motorsailer) may count as a motorboat; if in doubt, ask the French maritime authorities. Only an auxiliary engine above 6 hp changes the limit in Cap Calme: it is used within the limit of your licence and, with no licence, Cap Calme keeps a 6 nm limit from a shelter as a precaution.

A shelter is, in the official wording, a place on the coast where a boat and its crew can reach safety by anchoring, landing or berthing, and leave again without help. It depends on the day's weather and on the boat: an exposed beach is not one. The official guidance leaves the choice of distance to the skipper, based on the boat's design category (A to D).

Cap Calme starts from your licence and your kit and draws your limit on the map, estimated from the known harbours and anchorages. Routes are planned within it, and Cap Calme warns you if a leg goes outside. Setting up takes a minute, with no account. It covers mainland France and Corsica.

See my limit on the mapI'm renting a boat

Common questions

How far is 6 nautical miles in kilometres?

One nautical mile is 1,852 metres: 6 nautical miles is 11.1 km, 2 miles is 3.7 km and 60 miles is 111 km. It is measured from a shelter, not from the nearest beach.

What counts as a shelter?

A place on the coast where a boat and its crew can reach safety by anchoring, landing or berthing, and leave again without help. A harbour, a slipway or a cove sheltered from the day's wind can be one; an exposed beach is not. The skipper decides on the day.

Where can I find a map of the 6-mile zone?

There is no official 6-mile line: the limit depends on the shelters you choose, so on the coast and the day's wind. Cap Calme draws an estimated zone from known harbours and anchorages, based on your licence and safety kit. It is a planning aid, not for navigation: check your route on the official SHOM chart.

Sources

Planning aid only, not for navigation. Cap Calme is not a navigation instrument: it does not replace SHOM charts (official French charts), notices to mariners or the marine weather bulletin. Only the official texts are binding. Rules checked on 24 October 2026 on mer.gouv.fr. The decision to go out remains the skipper's.