Mannes Bank - Inner Islands
Mannes Bank is a deep offshore seamount, one of those sites that feels truly remote. Expect pelagics out here, we’ve often seen grey reef sharks patrolling the deeper edges and schools of tuna zipping by. The currents can be quite strong, so it’s really a spot for experienced divers comfortable with drift diving. If you’re looking for big fish action away from the usual crowds, Mannes Bank delivers.
- Location
- Inner Islands, Seychelles, Indian Ocean & East Africa
- Coordinates
- -4.661150, 55.566967
Marine Protected Area: Anse Aux Pins Shell Reserve
Best Time to Dive in Inner Islands
The warmest water temperatures in Inner Islands occur in April, averaging 30.4°C. The coolest conditions are in August at 26.6°C.
Monthly Water Temperatures
- January: 28.7°C
- February: 29.0°C
- March: 29.8°C
- April: 30.4°C
- May: 29.8°C
- June: 28.5°C
- July: 26.8°C
- August: 26.6°C
- September: 27.4°C
- October: 28.3°C
- November: 29.0°C
- December: 29.1°C
Nearby Dive Sites in Inner Islands
- Albatros (reef)
- Albatros (reef)
- ALDEBARAN - 26m (wreck)
- Aldebaran Wreck (wreck)
- Aldebaran Wreck (pinnacle)
- Amoujie Maman
- Anse Petit Cour (muck)
- Anse Petit Cour (reef)
- Aquarium (reef)
- Aquarium (reef)
- Aride Bank (reef)
- Aride Bank (reef)
- ATERPE-ALAI - 17m (wreck)
- Auberge Reef (reef)
- Auberge Reef (reef)
Nearest Dive Centres to Mannes Bank
Marine Life in Inner Islands
Home to 184 recorded species including 156 reef fish, 8 hard corals, 6 sharks & rays, 5 sea snails & nudibranchs, 4 whales & dolphins, 2 other.
Notable Species
- Stripy (Katsuwonus pelamis) - Reef Fish
- Allison's Tuna (Thunnus albacares) - Reef Fish
- Kingston (Decapterus macarellus) - Reef Fish
- Bullet Mackerel (Auxis thazard) - Reef Fish
- Dorado (Coryphaena hippurus) - Reef Fish
- Bigeye tuna (Thunnus obesus) - Reef Fish
- Rainbowfish (Halichoeres hortulanus) - Reef Fish
- Salmon (Elagatis bipinnulata) - Reef Fish
- Blackspot Surgeonfish (Acanthurus nigrofuscus) - Reef Fish
- Silky shark (Carcharhinus falciformis) - Sharks & Rays
- Armed Squirrel-fish (Neoniphon sammara) - Reef Fish
- Threadfin (Chaetodon auriga) - Reef Fish
- Great Barracuda (Sphyraena barracuda) - Reef Fish
- Giant trevally (Caranx ignobilis) - Reef Fish
- Banded Toby (Canthigaster valentini) - Reef Fish
- Blue Surgeonfish (Acanthurus leucosternon) - Reef Fish
- Wrasse (Labroides dimidiatus) - Reef Fish
- Sperm Whale (Physeter macrocephalus) - Whales & Dolphins
- Argus Grouper (Cephalopholis argus) - Reef Fish
- Blenny (Istiblennius dussumieri) - Reef Fish
Recommended Packing List for Mannes Bank
Based on average water temperature of 28.6°C, currents 11 cm/s.
- Shorty or Rashguard - warm 29°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