We holiday every year at Hotel Bon Sol in Mallorca, it is a family owned Hotel with free nanny service during school holidays, and they will cater for any age of child, the food is superb (chef makes early tea for children all home made) the pools are plentiful and some heated (one salt pool - no chlorine) there is a small private beach, and they have family rooms so children are in own connected room - beds are comfy, slippers are free, kettle, english TV channels etc) this is an upmarket but not snobby hotel, it is very non commercial and although you have convenience of mallorcas many attractions on doorstep you will feel as though you are in a quiet oasis during crazy school holidays - I have only ever encountered max 10 other children there. Book direct for best prices.