Denis Island

written in collaboration with tinoumer (7 spots)

Denis Island is a must for any travelers visiting the Seychelles. This natural sanctuary, planted with coconut, takamaka and casuarina trees, and fringed by white sand beaches, has a taste of paradise. Surrounded by pristine waters and vibrant coral reefs, where it’s usual to come across sea turtles, young sharks and eagle rays, Denis Island will bring you wonderful snorkeling adventures.
How to get there?

Daily 30 minute flights connect Mahé with Denis Island, located 60 kilometers north of the main island and 50 kilometers east of Bird Island. But to visit this out-of-the-world paradise, you have to be guest of the human size luxurious resort located on this private island (Denis Private Island). If you don’t want to spend the unavoidable high range price to stay on the island, you can request the authorization to approach the island by boat and moor in the area.

Water entrance

Enter the water from the sandy beach, in front of the area you want to explore.

Aerial view


You can do snorkeling all around the island, surrounded by coral reefs, but we particularly recommend you the two following areas, known for the richness of their marine life and their easy access:

In front of Bois Blanc beach, on the west side of the island, you will find coral and seagrass areas. This area is opened on the sea. Encounters with hawksbill sea turtles, which come to feed and rest on the seagrass (all year round) and lay their eggs on the beach (from November to February), are guaranteed. Spotted eagle rays and juvenile blacktip reef sharks can also be seen very easily, but are more difficult to get close to, however. The areas facing the northern (House Reef) and southern (Muraille Bon Dieu) tips of the island can also be explored, but are more rocky.

Belle Etoile beach gives access to the lagoon fringing the east side of the island. The lagoon is protected from the tumult of the Indian Ocean by a coral reef, and its shallow, crystal-clear waters (less than 6ft/2m), sprinkled with coral, are ideal for beginners. You will swim with dozens of species of reef fish, as damselfish, butterflyfish, surgeonfish, triggerfish… Do not try to cross the barrier and explore the other side of the reef (currents, waves…).

Skunk clownfish at Denis Island, Seychelles
Skunk clownfish at Denis Island © photo credit Martine Mas

Around the island, the sea is generally calm, with no waves. Denis Island is private, with very limited number of guests. Enjoy the peacefulness of the area, but try not to go snorkeling alone.

Restaurants and accommodation

The only accommodation set on the island is the Denis Private Island hotel. The residents of all have full board.

Snorkeling Report gives the most precise tips possible about the snorkeling spots and potential dangers, but each one of us is responsible for our own safety in the water. For more information, take a look at the snorkeling safety page. If you want to add extra information or make any corrections to the spot descriptions, please contact us.

Spot’s weather forecasts (°C)

Spot tips

  • Type of spot
  • Level of difficulty
    All levels
  • Maximum depth
  • Water entrance
    Easy, from sandy beaches
  • Lifeguard
  • Visitor numbers
  • Access costs
    Private Island
  • Restaurants nearby
  • Public toilets & showers

Spot map

Spot photos

Underwater spot photos

Species you may spot while snorkeling Denis Island

Common name Scientific name Abundance Fishbase Wikipedia
Hawksbill sea turtle
Eretmochelys imbricata
Spotted eagle ray
Aetobatus narinari
Emperor angelfish
Pomacanthus imperator
Skunk clownfish
Amphiprion akallopisos
Orbicular batfish
Platax orbicularis
Honeycomb grouper
Epinephelus merra
Whitespotted rockcod
Epinephelus caeruleopunctatus
Powder blue tang
Acanthurus leucosternon
Black-blotched porcupinefish
Diodon liturosus
Threadfin butterflyfish
Chaetodon auriga
Raccoon butterflyfish
Chaetodon lunula
Clown surgeonfish
Acanthurus lineatus
Convict surgeonfish
Acanthurus triostegus
Blue tang
Paracanthurus hepatus
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