Lac Dziani (Dziani Dzaha)

A volcanic crater lake on the small island of Petite-Terre, its water jade-green from algae. A circuit of the crater rim gives views of both the lake and the lagoon.

Lake Dziani lies inside a volcanic crater on Petite-Terre island. It is a highly alkaline saltwater lake, and its water turns a distinctive jade green because of cyanobacteria. Scientists treat it as a sample for studying the ancient environments of Earth. A trail of about one hour circles the crater rim, with the green lake on one side and the lagoon and the mountains of Grande-Terre visible on the other. The water is not suitable for swimming. Take the ferry from Mamoudzou (about 15 minutes) to Petite-Terre, then continue by taxi or on foot. It can be combined with Moya Beach on the same day.

Opening hours

All day

Crater lake · Hiking · Scenic views

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