We (2 adults, 13 year old) have had a couple of lovely holidays in SW France (coast) but want to try somewhere else. We like outdoorsy things - especially walking, swimming & cycling - but all burn easily so aren't ideally suited to the Med. We'd also like to travel by train and then hire a car if needs be. Happy to be based in one location for the duration. We usually rent a place vs camping or hotels, and prefer to be in a village or town.
I'd wondered about central France near rivers or a lake, northern Spain/Portugal or northern Italy - but am not really sure where to start looking. Am posting here in case others have any thoughts that might help me narrow things down!