There are lots of good snorkeling spots on the island of Mare in the Loyalty Islands of New Caledonia. You go in off the beach and swim in the lagoon. Guided snorkeling is one of the activities offered at the annual Fete du Wajuyu in Roh. Snorkelers head out the Pass de Tortue looking at the reefs of the lagoon. They even organize a night-snorkel for those who want so see the reefs at night.
For more information on diving and snorkeling in New Caledonia download a copy of the Rocket Guide to New Caledonia.
Visit the official Destination Iles Loyalte website for Maré, Loyalty Islands
Mare Island is the southernmost of the four Loyalty Islands in New Caledonia. It is an uplifted coral atoll with jagged cliffs on the southern shores 130 metres high. The center of the island, the ancient lagoon, is flat and there are several caves and sink-holes - some with salt water and others with fresh water. Air Caledonie offers two flights a day to Mare - a 40 minute flight. There is also a 3.5 hour high speed ocean going catamaran Betico II. There is just one Mare hotel, the Nengone Village Hotel, one Gite, two tribal stays, and one camping ground. The primary attraction for visitors are the wilderness walks, the snorkelling, the lovely beaches, and the festivals. There is no public transport on Mare but there are small tour buses, taxis, and rental car agencies. The island is small enough that you can also rent a bicycle and visit many of the main tourism destinations. As in all the Loyalty Islands the people speak their own local Melanesian language plus French.