This spot has been added by


10 spots added - 171 photos shared

Other contributors You can help us keep this page up-to-date by uploading your pictures to the photo gallery, or by sending us your comments via the contact form

Denis Island is probably the most famous resort island in Seychelles. This natural sanctuary, planted with coconut, takamaka and casuarina trees, has a taste of paradise. Surrounded by pristine waters and vibrant coral reefs where sea turtles, reef sharks and eagle rays abound, Denis Island will bring you wonderful snorkeling adventures.

Eagle ray at Denis Island, Seychelles
Encounter with an eagle ray on Denis’s shallow flats.

How to get to Denis Island snorkeling area?

To visit this out-of-the-world paradise, you have to be a guest of the Denis Private Island resort. Daily 30-minute flights connect Mahé with Denis Island, located 60 kilometers north of the main island and 50 kilometers east of Bird Island.

Denis Island Seychelles snorkeling map

Water entrance for snorkeling Denis Island

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

Denis Island snorkeling tips

You can snorkel all around the island, surrounded by coral reefs. In front of Bois Blanc beach, on the west side of the island, you will find open coral and seagrass areas. 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 almost guaranteed. Denis is also one of the rare locations in Seychelles where green sea turtles are common.

Snorkeling with skunk clownfish at Denis Island
Denis Island is one of the rare locations in Seychelles where skunk clownfish can be observed at snorkeling depths.

Spotted eagle rays and juvenile blacktip reef sharks can also be seen very easily in this area, 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 snorkeled, but are rockier.

Belle Etoile beach gives access to the lagoon fringing the east side of the island. Its shallow (↕6ft/2m), crystal-clear waters, sprinkled with coral, are ideal for beginners. A diversity of reef fish, including damselfish, butterflyfish, surgeonfish, triggerfish and anemonefish, call the lagoon home.

Orbicular batfish at Denis Island
Big orbicular batfish hide below rocks in Denis Island’s lagoon.

Around the island, the sea is generally calm, with no waves. If the sea gets rougher, choose the most sheltered side.

Restaurants and accommodation in Denis Island

The only accommodation on the island is the Denis Private Island hotel.


  • Level required Beginner
  • Maximum depth+6m/20ft
  • Water entranceEasy, from sandy beaches
  • LifeguardNo
  • Visitor numbersLow
  • Access costsPrivate Island
  • Restaurants nearbyYes
  • Public toilets & showersYes

MAP Spot

Sea turtle watching in Denis Island


Sea turtles are a very familiar sight in Akumal Bay. In order to be a responsible snorkeler, be sure to respect the following rules when observing them:

  1. Do not attempt to touch or ride sea turtles
  2. Stay at a distance (6 to 10ft) from sea turtles
  3. Do not chase a turtle swimming away
  4. Avoid sudden movement and allow sea turtles plenty of space when they come up to the surface to breathe

These snorkeling spots are accessible to beginners and kids. You will enter the water gradually from a beach, or in a less than 3ft. deep area. The sea is generally calm, shallow, with almost no waves or currents. These spots are usually located in marked and/or monitored swimming areas. It is not necessary to swim long distances to discover the sea life.

This level only apply when the spot experiences optimal sea and/or weather conditions. It is not applicable if the sea and/or weather conditions deteriorate, in particular in the presence of rough sea, rain, strong wind, unusual current, large tides, waves and/or swell. You can find more details about the definition of our snorkeling levels on our snorkeling safety page.