Dive Site: Desroches Drop-off

About Desroches Drop-off

Desroches Drop-off is a prominent dive site located in the Outer Islands of the Seychelles, defining the transition from the turquoise lagoon waters of Desroches Island to the deep blue of the Indian Ocean. This dramatic drop-off serves as a frontier diving experience, characterized by its remote location and pristine marine environment. Desroches Island itself features a unique topography with 18 classified dive sites, making the surrounding waters one of the most biodiverse and least visited diving destinations in the Seychelles. The underwater landscape at Desroches Drop-off includes sheer walls, intricate gulleys, caverns, and deep caves, offering a varied and exciting exploration for divers. The drop-off plunges to significant depths, providing opportunities for advanced divers to explore beyond recreational limits. Conditions in the Outer Islands often include strong tidal shifts around lagoon inlets, creating powerful drifts that can bring pelagic species closer to the reef. The diverse marine life here includes schooling reef fish, various shark species like grey reef and silvertip sharks, and rays such as manta rays and eagle rays, which are present year-round. Green and hawksbill turtles are also commonly sighted along the reef. The healthy coral ecosystems, including gigantic gorgonian fans and barrel sponges, provide a vibrant habitat for these species. Given the varied depths and potential for strong currents, diving here is best suited for experienced divers comfortable with drift diving and deeper explorations, with multiple dives typically scheduled to fully appreciate the site's offerings. The Seychelles archipelago is known for its clear turquoise waters, making it an excellent destination for underwater photography and exploration. The Outer Islands offer a unique balance between accessibility and a sense of unexplored wilderness, providing an exclusive dive experience away from more crowded areas.

Dive site facts: Desroches Drop-off

Depth

12–40 m+

Current

Occasional strong drifts

Visibility

30 m+

Water temperature

26–29°C

Entry

Liveaboard / tender

Level

Advanced

Dive type

Wall, drift, pelagic

Region / port

Outer Islands (Amirantes Group)

Coordinates

-5.68, 53.65

Conditions & Currents

While Desroches Drop-off generally offers calm conditions during peak seasons, divers should be prepared for potential strong tidal shifts, particularly around lagoon inlets in the broader Amirantes group. These currents can create exhilarating drift dives and attract larger pelagic species, but they necessitate good buoyancy control and current diving experience. During the southeast trade winds (May-September), exposed areas may experience stronger currents and choppier surface conditions, though sheltered spots are usually available. Visibility is excellent, frequently exceeding 30 meters, but can be influenced by weather patterns or plankton blooms that attract pelagics. Entry and exit are typically boat-based, and careful attention to dive guides' instructions for drift diving is crucial.

Marine life & sighting chances

Reef sharks

Year round · common

Eagle rays

Year round · common

Marine turtles

Year round · common

Napoleon wrasse

occasional

Schooling reef fish

Year round · common

Manta rays

October to May · occasional

Dogtooth tuna

occasional

Groupers

common

Barracuda

occasional

Humphead parrotfish

occasional

Dive profile & how the dive runs

Diving at Desroches Drop-off typically begins with a boat entry directly onto the wall, often involving a negative entry to quickly descend. The dive then becomes a drift along the dramatic vertical wall, allowing the current to carry you past deep gulleys, overhangs, and caverns that punctuate the reef face. Depths can range from 12 meters along the shallower sections to well beyond 40 meters, depending on diver certification and experience. Divers should maintain good buoyancy control to stay close to the wall and observe the rich hard coral ecosystems and macro life, while also keeping an eye on the blue for pelagic activity. The turning point is usually dictated by air consumption and current direction, with ascent taking place mid-water. The safety stop is conducted in the clear blue, often with visual reference to the reef below as you drift, before surfacing for boat pick-up.

Underwater photography

Desroches Drop-off provides exceptional opportunities for wide-angle photography, capturing the dramatic wall topography, vast coral formations, and schooling pelagic fish against crystal-clear waters. A wide-angle lens is essential for conveying the scale of the drop-off and its inhabitants. For close-up shots, a macro lens can be rewarding for documenting the vibrant reef life and smaller critters nestled within the corals. Given the depth and potential for low light in certain gulleys or caverns, external strobes or video lights are highly recommended to bring out true colors and enhance contrast. Practice good buoyancy to avoid stirring up sediment or damaging delicate corals, ensuring clear shots and preserving the pristine environment.

Combine with nearby dive sites

• Amirantes Atoll

  Part of the same island group, offering varied reef and lagoon diving.

• Denis Island Reef

  Further north, known for whale shark sightings in season.

• Alphonse Atoll

  South of Desroches, offering similar wall and pelagic diving experiences.

Getting there & logistics

Access to Desroches Drop-off is primarily via liveaboard charters or exclusive resort transfers from Mahé. The main international gateway is Seychelles International Airport (SEZ) on Mahé, with direct flights from major hubs like Dubai, Doha, and European cities. From Mahé, inter-island flights or charter boats are necessary to reach Desroches Island, which is part of the Outer Islands. Dive trips here are often part of extended liveaboard itineraries, typically lasting 7 to 10 days, exploring the Amirantes Group and surrounding remote atolls. While there are no specific park fees mentioned for this site, liveaboard costs generally include all diving, accommodation, and meals. Booking well in advance is advisable due to the remote nature and exclusivity of these trips.

Safety & environment

Diving at Desroches Drop-off requires adherence to standard dive safety protocols, particularly due to its remote location and the potential for drift dives. Divers should always carry valid dive insurance that covers emergency evacuation and recompression. The nearest recompression chamber is located on Mahé, which is a significant distance away, making prompt evacuation a logistical challenge; therefore, prevention is paramount. Always dive within your training and comfort limits, pay close attention to your dive guide's briefings, and be proficient in buoyancy control, especially when navigating currents along the wall. Maintain a safe distance from marine life and avoid touching corals to preserve this pristine environment.

Who it suits — and who it doesn't

FAQ

Desroches Drop-off FAQ

Liveaboards diving Desroches Drop-off

These liveaboards may visit Desroches Drop-off on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Explorer 1

Seychelles

6 guests17 m

$522/day

Sea Pearl

Seychelles

16 guests36 m

$212/day

Sea Bird and Sea Star

Seychelles

18 guests42 m

$288/day