Ils very generously want to take my family and sil's family away on holiday - we're looking for somewhere where we can all do separate stuff in the day, as we're a wide age range (Dc ages range from 13 to 4), and so we don't all kill each other, but then get together at mealtimes.
They previously took us to Disneyworld, on a similar trip, which was a big hit - something similar would work, I'm thinking of a resort in somewhere like Greece/Spain that offers activities for those who want them but where mil could snooze by the pool. A villa doesn't work as mil would feel compelled to cook and clean.
Any suggestions very welcome.