I’ll repeat my prediction campsites will have places from tomorrow night, it’s back to school on Monday.
Tomorrow you’ll be going past some places that are worth more time if you want to do the tourist thing. There are Île de Ré with its network of cycle paths, Île d’Aix by boat and Île d’Olèron if you fancy a sea food restaurant. In terms of history all that water out there was the scene of several naval battles between the British and French up to the Napoleonic period. The main west coast naval arsenal was in Rochefort and there are many fortifications to see including Fort Bayard which you’ll recognise form TV series.
The next day south you have Royan which was bombed by the Brits and Yanks in WWII, a shambles that bordered on a war crime. The town was completely leveled and rebuilt in 50s concrete. I love the architecture. The little dedicated museum in town and the cathedral are well worth a visit. Clairefontaine campsite in Pontaillac is one of the ones I used to work on with a nice swimming beach nearby. You can cut the corner to get there but going along the cycle route along the Côte Sauvage and past le Phare de la Coubre (you can go up it for a panoramic view for a few euros) is worth the extra effort.
Then there’s the BAC over to the Médoc.