Corsica · France · Reef
Le Danger de la Vacca
Catalogued from 15 m down to 40 m off Porto-Vecchio
Area photo: Reustli · CC BY-SA 4.0
Le Danger de la Vacca is a dive site off Porto-Vecchio on Corsica's south-east coast, catalogued for its underwater scenery and its biodiversity rather than for any one feature. The published range runs from 15 m down to 40 m and the entry rates it for intermediate to advanced divers, which makes it a boat dive for people who already have depth experience.
Where it is and how deep
41.5452° N, 9.3818° EPublished position for this site.
The dive
This is a boat dive off Porto-Vecchio, and the one firm number to plan against is the depth range: 15 m at the shallow end, 40 m at the deep end. How much of the site you get is decided before you get wet, because time spent near the bottom of that range is short and the ascent and safety stop have to be paid for out of the same tank.
Work it as a multi-level dive. Take the deep part early, keep it brief and deliberate, then spend the last third of the tank up in the 15 m band, where the light is strongest and there is no decompression pressure on you. Agree a hard maximum with your buddy on the boat rather than in the water, and hold the safety stop where the boat can see you.
The catalogue entry is about scenery and biodiversity rather than any particular animal, so a wide-angle plan suits it better than a shot list — no species, current, visibility or temperature figures are published for this site. That leaves the operator's briefing on the day as the authority on how it is actually run and whether the sea state allows it at all.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Off-season | Fair | Fair | Good | Good | Prime | Prime | Prime | Prime | Good | Fair | Off-season |
Season follows Corsica: Operators run Apr–Oct with July and August warmest; the Bouches de Bonifacio funnel wind and can close the crossing at short notice.
Know before you go
- The 40 m end of the range makes narcosis and gas planning the real risk here; set a hard turn depth on the surface and stick to it.
Questions divers ask
How deep is Le Danger de la Vacca?+
The catalogue publishes a range of 15 m to 40 m and rates the site for intermediate to advanced divers. Most of the dive is spent shallower than the maximum, with any time at the deep end kept short.
Sources
- Le danger de la Vacca — Scubago
More dive sites in Corsica
A 3 m to 15 m nursery plateau in an island reserve
A protected islet dived end to end, 3 to 25 metres
Pinnacle
An arc of rock off Vacca, on a 13 m to 28 m seabed
Cave & cavern
Natural rock arches on a 10 m to 30 m band
Pinnacle
Two rock plateaus at 3 m with 36 m of water around them
Pinnacle
The sec du Pelu, renamed for the groupers that hold on it
Rock formations and faults on ground from 5 to 30 metres
Catalogued from 10 to 30 metres on the Chiappa cape
Similar dives elsewhere
Eagle rays over deep offshore rock, sand tigers in summer
Tunnels and faults at 26–38 m, home to grouper and corb
A buoyed reef from 6 m that can be dived as a drift
Tunnels through the rock, a small wreck and a plane wing between 6 and 35 m