Yes, in the summer this is a much better place than the Côte d´Azur, not too hot, maybe not hot at all like this summer..., less crowded and above all, silent!
To move around you don´t need a boat of your own, take a steamferry. They are both going regular trips or special cruises with dinner and live music. Small hotels and restaurants are popping up everywhere nowadays so you can move around for a couple of weeks.
Season is from mid june to mid august, welcome!