We define "Biscay France" as the coast from of the Raz du Sein to the Gironde estuary. It's a superb cruising ground (8/10), a busy holiday coast with easy day sailing, sandy beaches, sheltered estuaries, inland seas, groups of small islands, and some beautifully preserved old towns. It is the yachting centre for France, rather the equivalent of Poole/The Solent in south England. It is dense with reasonably priced marinas, harbours, and anchorages. It's easy to spend four weeks cruising here, with plenty left for further visits. Many British boats base here, with crews commuting to UK with the help of this public transport planner site.