Watersports: Playa del Carmen including: windsurfing, diving & snorkelling (ranked among the world's best).
Birdwatching: Celustun Reserve (Merida); Chichen Itza (gardens of Hacienda Chichen Resort),
Walking: Merida (in the grounds of Hacienda Xcanatun); Chiapas region
Boat trips: Sumidero Canyon (Chiapas); Xochimiloco (South of Mexico City)
Festivals: Day of the Dead (all over Mexico, November); The Night of the Radishes (Oaxaca, 23 December); Guelaguetza (Oaxaca, 1st two Mondays after 16 July).