Sani Resort, Halkidiki, Greece
Four hotels in one resort, set on a 1,000-acre ecological reserve on the Halkidiki Peninsula. The all-suite Sani Asterias is the smartest option for families, and it's closest to the beach where you'll find the famous 'Babe Watch' babysitting service (the first half-hour is free). There's a creche and kids' club, excellent children's menu and two top notch (child-free) spas.
+30 23 74 09 95 00Website: www.saniresort.gr