Yohan’s Wreck - Mayotte Lagoon

Yohan’s Wreck might only sit at 19 metres, but it’s a site we genuinely love for its character. This old fishing trawler, sunk intentionally back in 2003, is the kind of wreck that perfectly balances being explorable without being intimidating. You can easily fin around the bridge structure, poke your head into the hold, and imagine the working life of the vessel. We often spend a good part of the dive just watching the resident fusiliers swirl around the mast, a shimmering column of silver scales that sometimes parts for a passing hawkfish. It’s a fantastic spot for new wreck divers, offering a real sense of adventure without any tricky currents or tight squeezes. Our favourite time to visit is mid-morning, just as the sun starts to properly illuminate the deck, bringing out the vibrant purples of the soft corals that have completely overtaken the railings. Look closely, and you’ll often find a well-camouflaged stonefish or even a sleepy turtle tucked away underneath the hull.

Location: Mayotte Lagoon, Mayotte, Indian Ocean & East Africa
Coordinates: -12.965000, 45.084500
Type: wreck
Maximum Depth: 19m
Difficulty: Beginner

Marine Protected Area: N’Gouja

Best Time to Dive in Mayotte Lagoon

The warmest water temperatures in Mayotte Lagoon occur in January, averaging 29.9°C. The coolest conditions are in December at 29.9°C.

Monthly Water Temperatures

January: 29.9°C (air: 26.6°C)
February: 29.9°C (air: 26.7°C)
March: 29.9°C (air: 27.1°C)
April: 29.9°C (air: 27.1°C)
May: 29.9°C (air: 26.2°C)
June: 29.9°C (air: 25.0°C)
July: 29.9°C (air: 24.2°C)
August: 29.9°C (air: 24.1°C)
September: 29.9°C (air: 24.4°C)
October: 29.9°C (air: 25.4°C)
November: 29.9°C (air: 26.4°C)
December: 29.9°C (air: 26.9°C)

Nearby Dive Sites in Mayotte Lagoon

Nearest Dive Centres to Yohan’s Wreck

Happy Divers centre de plongée - FSGT, ANMP, FFESSM, NAUI, PADI, SSI, BSAC, EDA
Le Lagon Maore

Marine Life in Mayotte Lagoon

Home to 415 recorded species including 260 reef fish, 101 hard corals, 17 whales & dolphins, 10 sea cucumbers, 9 sharks & rays, 6 sea snails & nudibranchs.

Notable Species

Allison's Tuna (Thunnus albacares) - Reef Fish
Stripy (Katsuwonus pelamis) - Reef Fish
Bristle-toothed Surgeonfish (Ctenochaetus striatus) - Reef Fish
Blue-lined Tang (Zebrasoma scopas) - Reef Fish
Bullethead Parrotfish (Chlorurus sordidus) - Reef Fish
Argus Grouper (Cephalopholis argus) - Reef Fish
Indian gold-ring bristle-tooth (Ctenochaetus truncatus) - Reef Fish
Blackspot Surgeonfish (Acanthurus nigrofuscus) - Reef Fish
Whitetail Surgeonfish (Acanthurus thompsoni) - Reef Fish
Heavybeak Parrotfish (Chlorurus strongylocephalus) - Reef Fish
Dorado (Coryphaena hippurus) - Reef Fish
Silky shark (Carcharhinus falciformis) - Sharks & Rays
Bigeye tuna (Thunnus obesus) - Reef Fish
Salmon (Elagatis bipinnulata) - Reef Fish
Red-flushed Cod (Aethaloperca rogaa) - Reef Fish
Doubleband Surgeonfish (Acanthurus tennentii) - Reef Fish
Two-spot Bristletooth (Ctenochaetus binotatus) - Reef Fish
Ocean Triggerfish (Canthidermis maculata) - Reef Fish
Barracuda (Acanthocybium solandri) - Reef Fish
Bullet Mackerel (Auxis rochei) - Reef Fish

Recommended Packing List for Yohan’s Wreck

Based on average water temperature of 29.9°C.

Shorty or Rashguard - warm 30°C water needs minimal exposure protection
Mask - essential for every dive
Fins
BCD - buoyancy compensator
Regulator - your most safety-critical piece of gear
Dive Computer - tracks depth, time, and NDL
Surface Marker Buoy (SMB) - essential for boat pickups
Dive Torch - useful for crevices and colour at depth
Underwater Camera - capture your diving memories