I would love to hear of any recommendations for lovely quiet spa hotels (or hotels near a good spa) within a +/- 3hr train trip from London. Staying solo, celebrating my 40th! August, so ideally somewhere not overrun with tourists / families (if that's even possible).
Ideally somewhere that's also within easy reach of an interesting city / town / village. I love art, gardens, FOOD, and swimming is a bonus. In terms of spa, I mostly like a good massage, plunge pool, sauna/steam.
Doesn't need to be UK - I think some Eurostar destinations are within easy reach.
Many thanks : )