Corsica is in the Mediterranean, a relatively small and enclosed sea (1% of the world’s ocean surface) that represents a major source of biodiversity. It is estimated that the Mediterranean contains 8% of the world’s sea life, with an endemism rate of nearly 30%. The posidonia seagrass (or Neptune Grass), in particular, provides a remarkable environment that is easy to explore from the coast. Although it is easy to come across wrasse, bream and starfish in the Corsican waters, it is also possible to see (if you select your spots carefully and with a little luck), moray eels, cuttlefish and stingrays.
Almost all of the Corsica coast, most of it rock, is adapted to snorkeling. Here a series of small hidden or accessible beaches and creeks await you, with infinite snorkeling possibilities. The paradisal beaches in the south-east of the island (Santa Giulia, Rondinara, Palombaggia), the Gulf of Porto, the Isolella peninsula, the cliffs of Bonifacio or Cap Corse have many snorkeling spots that are easy to access from the shore.
But for the snorkeling must in Corsica, set off for the day to one of the many natural reserves on the island. Because of their abundant underwater life and preserved condition, they are extraordinary snorkeling spots. You can explore the Cerbicales Islands, the Finocchiarlo archipelago or Scandola (listed as a UNESCO World Heritage site), but the Lavezzi Islands surely hosts the best snorkeling spots of Corsica.
This tiny archipelago, located 10km south of Bonifacio, is made of a main island and many rocks and islets. The Lavezzi Islands have been protected as a marine reserve since 1982. The fish have long been used to human presence, so this is an exceptional place for discovering Mediterranean underwater life. Three spots of the Lavezzi (Cala Achiarina, Cala di u Grecu and Cala della Chiesa) are really recommended if you spend a day on the islands.
The climate in Corsica is mild and sunny, and the temperatures are almost always higher than on continental France. On the coast, average temperatures are between 70 to 80°F (20 to 25°C) from June to September, and from 55 to 70°F (14 to 20°C) the rest of the year. July/August is the peak period for tourists in Corsica, and you can expect high visitor numbers on some parts of the coast.Water temperature varies between 75 and 80°F (24 and 26°C) from July to September, and around 70°F (20°C) in June and October. Outside these months, snorkeling is limited by the cooler water temperatures, unless you have an adapted wetsuit.
Each year in Corsica there is an “Indian summer” in September and October, when the water temperature hovers around 80°F (25°C) at the surface. Most tourists have already left the island, and this is probably the ideal period for a visit.
More than 170 spots have already been published on Snorkeling Report, but there are still many spots to be added! You too can contribute to populate the map by sharing your favorite snorkeling spots around the world. The more snorkelers will contribute, the easier it will be for you, and other snorkelers, to find sites and enjoy the underwater world!
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This reference identification guide includes all the 860 marine fish species that may be encountered while snorkeling in coastal Western Europe and the Mediterranean.
Occasional sightings on all spots; more frequent in protected areas like the Lavezzi Islands
Common in rocky areas
Common during mating season (April to June) in rocky areas and seagrass meadows, even at shallow depths.
Found on all spots, particularly in Neptune grass meadows
Common on all spots; abundant in Solenzara
Occasional sightings in rocky areas
On all spots
One of the most common sights in the Mediterranean; frequently schooling in Neptune grass meadows
On all spots, commonly found in Neptune grass meadows
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