Le Danger de la Vacca

This is a boat dive off Porto-Vecchio, and the one firm number to plan against is the published depth band: 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.