Snorkelling Cenotes – but can they be saved?

Dos Ojos ('two eyes')Read’s dispatch for CNN Traveler on the Mayan Riviera’s cenotes here.

The mystical depths of Mexico’s ceynotes attract cave divers from round the world. But what can be done to safeguard these ancient treasure troves from the impact of tourism? Deborah Bonello reports.

Click here for video reports.