Jade Cavern, also called Cenote Chempita, is a freshwater cenote set in the jungle of Cozumel. Most cenotes on the Yucatan mainland sit on limestone bedrock, but this one sits on the island, which makes it a rare geological feature. The ancient Maya used it as a ceremonial site.

A visit starts with a drive through the jungle on unpaved trails, usually by jeep or ATV. A short path then leads through dense vegetation to the pool. The water is calm and enclosed by limestone walls, and low cliffs make a good place to jump in. A guide explains the formation of the cenote during the stop.

• Wear a swimsuit under your clothes and closed-toe shoes for the jungle trail. Expect to get dusty on the ATV or Jeep ride.
• Leave valuables on the tour vehicle when you visit the cenote.
• Use only biodegradable, reef-safe sunscreen at the cenote, since chemical sunscreens damage cenote ecosystems.
• Mornings catch the light on the water at its greenest. Midday has stronger light but more heat.