Ixtapa and Huatulco 800/258-2633; www.clubmed.com; doubles from $1,064 per week at Huatulco, $1,974 at Ixtapa; children free at Ixtapa; $56 per week (ages 23), $210 per week (ages 411) at Huatulco. Both are in lovely settings and have basic guest quarters, though Ixtapa has just been renovated and Huatulco is slated to be. The children's club in Ixtapa accepts kids as young as a year old (don't go if crying babies spoil your breakfast); the one in Huatulco starts at age four and has more of a scene for teens. Note: Ixtapa is closed until November 10; Huatulco until November 17.
La Puertecita San Miguel de Allende; 52-415/25011; www.mexicoboutiquehotels.com; doubles from $180; children $30. A country estate turned 33-room hotel, with its own learning center (language, art, and cooking classes), two pools (one heated), mountain bikes, and hot springs excursions.
Camino Real Oaxaca 800/722-6466 or 52-9/516-0611; www.caminoreal.com; doubles from $195; children 12 and under free. The city's grand hotel is a 16th-century convent with courtyards to run around in. Built on a human scale, Oaxaca has a wonderful central plaza; there are crafts centers and ruins nearby. Chef-restaurateur Rick Bayless, of Chicago's Frontera Grill, spends every Christmas here with his wife and 10-year-old daughter. His Christmas dinner restaurant: La Capella, in the town of Zaachila, 30 minutes southwest of Oaxaca, with its own swing sets, exotic birds, and bank of hammocks.