We went as far East as the Loire Valley at Saumur and as far South as Rochefort. Ile de Re was a wonderful place and if we won the lottery we might stay there quite a while.
Brittany is the best place for beached wrecks, which I love to paint, and for boats in general.
Duoarenez maritime museum was worth visiting.
Cameret has always been a favourite spot, it was our first stop crossing the Channel in our own boats. The fishing boats slowly decaying in Cameret's harbour are lovely subjects. The fisherman's chapel is one of best churches I've been in, with it's calm atmosphere, model ships and other votives.