JONIO - Corsica
The JONIO, a motor vessel that went down in 1972, rests upright at 34 metres. It’s a solid dive for those who appreciate a proper wreck rather than just some scattered debris. You can make out the bridge structure and a good section of the stern, which gives it a real sense of its former life. Over the decades, it’s become home to various Mediterranean species, with groupers often lurking in the deeper holds and schools of damselfish flitting around the railings. It’s a compelling site to explore, particularly if you're comfortable with deeper dives and want to spend some time piecing together its story underwater.
- Location
- Corsica, France, Mediterranean & Europe
- Coordinates
- 42.932220, 10.557500
- Type
- wreck
- Maximum Depth
- 34m
Best Time to Dive in Corsica
The warmest water temperatures in Corsica occur in January, averaging 13.9°C. The coolest conditions are in December at 13.9°C.
Monthly Water Temperatures
- January: 13.9°C (air: 9.4°C)
- February: 13.9°C (air: 10.7°C)
- March: 13.9°C (air: 11.2°C)
- April: 13.9°C (air: 13.4°C)
- May: 13.9°C (air: 17.4°C)
- June: 13.9°C (air: 22.3°C)
- July: 13.9°C (air: 25.5°C)
- August: 13.9°C (air: 25.3°C)
- September: 13.9°C (air: 21.6°C)
- October: 13.9°C (air: 17.9°C)
- November: 13.9°C (air: 13.8°C)
- December: 13.9°C (air: 10.8°C)
Nearby Dive Sites in Corsica
- A-20 Havoc, plane wreck - 21m (wreck)
- A Casaïola - 13m (reef)
- ADERNO - 55m (wreck)
- AFRICHELLE - 45m (wreck)
- Aile - 19m
- ALBERI (POSSIBLY) - 12m (wreck)
- Aquarium - 19m
- B-17 Bomber Wreck - 24-29m (wreck)
- Bagheera - 9m
- BAGLIETTO (PROBABLY) - 5m (wreck)
- Banc provencal - 40m
- Barakouda Diving Centre
- Benguigui
- BETTOLINA (POSSIBLY) - 12m (wreck)
- Cala dei Santi - 23m
Nearest Dive Centres to JONIO
- ACQUASPORT di Mazzi Stefano & C.S.n.c.
- A PIAGHJA DIVING CALVI - SSI, PADI
- Aquanautic Elba - SSI
- ARGENTARIO DIVERS SRL - PADI, SSI, UTD
- ARGENTARIO - OBI DIVING
- A.S.D. AMICI DI NEMO - SSI
Marine Life in Corsica
Home to 225 recorded species including 146 reef fish, 35 sharks & rays, 9 seagrass & algae, 8 whales & dolphins, 8 other, 5 hard corals.
Notable Species
- Mediterranean tapeweed (Posidonia oceanica) - Seagrass & Algae
- Blue-white Dolphin (Stenella coeruleoalba) - Whales & Dolphins
- Dusky grouper (Epinephelus marginatus) - Reef Fish
- Moonfish (Mola mola) - Reef Fish
- Cowfish (Tursiops truncatus) - Whales & Dolphins
- Razorback (Balaenoptera physalus) - Whales & Dolphins
- Corb (Sciaena umbra) - Reef Fish
- Scarlet Coral (Balanophyllia (Balanophyllia) europaea) - Hard Corals
- Bushy Coral (Cladocora caespitosa) - Hard Corals
- Wrasse (Coris julis) - Reef Fish
- Damsel fish (Chromis chromis) - Reef Fish
- Red coral (Corallium rubrum) - Soft Corals
- Blotched Picarel (Spicara maena) - Reef Fish
- Bogue (Boops boops) - Reef Fish
- Sunset cup coral (Leptopsammia pruvoti) - Hard Corals
- Painted Comber (Serranus scriba) - Reef Fish
- Ornate Wrasse (Thalassoma pavo) - Reef Fish
- Devil fish (Mobula mobular) - Sharks & Rays
- loggerhead turtle (Caretta caretta)
- Salema (Sarpa salpa) - Reef Fish
Recommended Packing List for JONIO
Based on average water temperature of 13.9°C.
- Wetsuit (5-7mm) - recommended for 14°C water
- Hood & Gloves (3-5mm) - helps retain warmth
- 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