Diving in Comoros

Bull Shark

General species description, not specific to this destination

Bull sharks are one of the most impressive predators divers can encounter in warm coastal waters. These robust sharks are easily recognized by their broad, blunt snout, stocky build, and grey coloration with a white underside. Growing up to 11 feet long, they have a powerful, muscular appearance that commands respect underwater. Bull sharks are known for their curious nature and may approach divers, maintaining a confident but generally non-aggressive demeanor. They're often seen cruising along reef walls or in open water, sometimes in small groups. Their ability to tolerate both saltwater and freshwater makes them unique among sharks, and they're excellent hunters with a varied diet including fish, rays, and other marine life.

Spotted Eagle Ray

General species description, not specific to this destination

The spotted eagle ray is one of the most spectacular encounters in tropical waters worldwide. These graceful giants glide effortlessly through the water with their distinctive diamond-shaped bodies and long, whip-like tails. Their dark backs are adorned with white spots or rings, creating a beautiful pattern unique to each individual. Watch for their prominent head with a duck-like snout and large eyes positioned on top. They're often seen cruising near sandy bottoms or coral walls, occasionally stopping to dig in the sand for mollusks and crustaceans. Their fluid, bird-like swimming motion is mesmerizing as they 'fly' through the water column, sometimes in small groups.

Green Sea Turtle

Destination note

Abundant year-round in Mohéli Marine Park. Itsamia sanctuary sees 20,000 nests annually. Frequently sighted on every Mohéli reef dive.

Hawksbill Turtle

Destination note

Commonly sighted on reefs throughout all three islands, particularly at Magic Rocks (Mohéli) and Trou du Prophète (Grande Comore).

Atlantic Bottlenose Dolphin

Destination note

Year-round resident with pods regularly sighted in the Mozambique Channel around all three islands. Most commonly encountered during boat crossings to offshore sites, especially between May-November when seas are calmest.

Common Lionfish

Destination note

Commonly seen on most reef and wreck dives across all three islands. Particularly abundant at the Massiwa wreck (Grande Comore) and Singani lava flow formations.

Great Barracuda

Destination note

Common at outer reef sites and deeper pinnacles. Most frequently encountered at Vailheu Bank, Bird Island Mchaco, and the Massiwa wreck. Especially active during calmer conditions May-November.

Saddleback Hogfish

General species description, not specific to this destination

A large hogfish or wrasse with a strong body, prominent lips, and a saddle-like dark marking that can vary by life stage. Adults patrol reef slopes and drop-offs, feeding on benthic invertebrates exposed by probing or turning rubble. The species is often inquisitive but keeps a comfortable distance from divers.

Mauritian Anemonefish

General species description, not specific to this destination

A small anemonefish with a bright yellow-orange body and a distinctive black vertical bar behind the eye. Smaller than the more common clownfish, reaching about 8cm maximum. Forms symbiotic relationships with specific sea anemone hosts. The species is less widely distributed than other clownfish, primarily found in the Red Sea and Gulf of Aden region. Its bright coloration makes it a favorite among macro photographers.

Whitetip Reef Shark

General species description, not specific to this destination

A slim reef shark with white-tipped dorsal and tail fins, often seen resting motionless in caves and under ledges by day. Unlike most sharks it can pump water over its gills while stationary.

humphead wrasse

General species description, not specific to this destination

The Humphead Wrasse is an iconic and majestic inhabitant of Indo-Pacific coral reefs, instantly recognizable by its immense size and the prominent, bulbous hump on its forehead, especially pronounced in older males. These gentle giants can reach over two meters in length and are typically greenish-brown to blue-green, often displaying intricate patterns on their scales. Divers will notice their thick, fleshy lips and two distinct black lines radiating behind the eye. They move with a slow, deliberate grace, often cruising along reef slopes and outer drop-offs. While generally solitary, they can sometimes be seen in small groups, curiously observing divers. Encountering a Humphead Wrasse is a truly unforgettable experience, a testament to the health and grandeur of the reef ecosystem.

Bluespotted Ribbontail Ray

General species description, not specific to this destination

A small, brightly patterned stingray with electric-blue spots, often resting under coral ledges or foraging over sand on Red Sea reefs.