Bird and Denis Island are coral cays surrounded by white sand beaches. From the closed lagoons, on the eastern side of the islands, to the shallow seagrass and coral areas, on their western side, Bird and Denis offer a wide variety of marine environments.

Their waters are home to outstanding marine life: hawksbill sea turtles resting under the surface, inoffensive juvenile blacktip reef sharks sneaking out the rocks, spotted eagle rays darting above the seagrass, sea anemones hosting couples of skunk clownfish, and a wide variety of other species (angelfish, triggerfish, butterflyfish…).

Sea turtle and skunk clownfish at Denis Island
Hawksbill sea turtles and skunk clownfish can be easily spotted while snorkeling along Denis Island’s coasts.

Bird Island and Denis Island, like the other islands of the granitic bank of Seychelles, enjoy a tropical climate and pleasant temperatures all year-round. Unlike other groups of islands in Seychelles (Aldabra or the Farquhar islands), they are not in the path of cyclones.

When to go snorkeling Denis and Bird?

Snorkeling is possible all year round, with average water temperatures of 82°F/28°C. From October to March, rains are more frequent (with a peak in January), the temperatures are highest (+/-86°F/30°C) and there is most humidity.

From April to September there is a cooler and dryer period, but it is also windier (+/-75°F/24°C). As the wind has a certain amount of importance in snorkeling, you should remember that the prevailing wind is north-westerly from October to March and south-easterly from April to September.

The inter-seasons (March to May and September to November) are the best periods for snorkeling.

JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
Windy
Warm and sunny
Rainy

300+ spots have already been featured on Snorkeling Report thanks to people like you. Share your favorite snorkeling spot and help us cover the world map. Your contribution will help the snorkeling community find sites and enjoy the underwater world!

ADD A SPOT

Where to spot them?

Discover on which snorkeling spots you are most likely to see your favorite species