"Set near the town of Bacalar about two-and-a-half hours south of Tulum, this very large, deep-blue cenote reaches depths of up to 300 feet and sits in dense jungle, creating a lake-like swimming and snorkeling experience with excellent visibility. Visitors can relax in shaded areas or dine at a restaurant that overlooks the water." - Patricia Doherty Patricia Doherty Patricia Doherty is a writer who specializes in covering destinations, resorts, and cruises for Travel + Leisure and other publications. Travel + Leisure Editorial Guidelines