Carwash
Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily, so treat everything here as planning ranges.
Carwash looks like a farm pond and dives like a dream sequence. In the cooler months its water turns glassy and the sun lights a garden of lily stems from below, their pads floating overhead like green parasols, one of the most photographed views in cenote diving. In summer a red-brown tannic layer floats on the surface and tints the light amber, a different mood rather than a flaw. Along one wall the cavern zone opens under a fringe of stalactites for guided passes, and small fish, freshwater turtles, and the site's occasional young crocodile keep the shallows busy.
The moment you come for: Underwater lily garden, amber tannic light in summer, easy cavern mouth, roadside logistics.
Topography: An open pond over limestone, with lily pads and reeds at the rim and a decorated cavern mouth below one wall.
Entry: Roadside pool on the Coba road where taxis were once washed, hence the name; simple steps into open water.
Know before you splash
Hazards: Tannic layer can dim the first meters in summer; the cave zone beyond the cavern mouth is for full cave divers only.
Permits & rules: Entrance fee at the gate; cavern passes require a guide.
Conservation: The lily beds are living structure: stay horizontal and clear of the plants.
Who you'll meet
"Charted here" species were listed by our editors from the sources on this page. Counts are GBIF occurrence records: observations logged within about 5 km of the charted position since 1990, matched only against the species in our catalogue. They show what has been seen there, not a promise of what you will see.
For photographers
Wide angle: ★★★★★ · Macro: ★★☆☆☆ (editors' 1–5 rating of what this site gives each style of shooting)