Cenote Dos Ojos, or Two Eyes Cenote, near Tulum, Mexico, is a popular diving and snorkeling spot renowned for its crystal-clear waters and stunning underwater cave systems. Accessibility can be challenging due to uneven terrain; inquire about options for visitors with mobility issues. While it's possible to visit independently, guided tours are recommended for divers and snorkelers to ensure safety and maximize the experience within the cave systems. The cenote is open year-round, but the dry season (December to April) offers the best visibility. Expect to spend approximately 2-4 hours exploring, and the cost typically ranges from $25-$40 USD per person, depending on activities.