The most interesting area to go scuba diving is probably at the northern part of the Rock. On the rocky sea bed that goes down as far as 15-17 metres, you will see two huge rocks, leaning one against the other, that create a narrow passage with the "roof" covered in parazoan.
Before swimming further down to a depth of 27 metres, you can see ahead large dentexes, and, if you are really lucky, some cute sunfish, or maybe even a shoal of barracuda. Swimming down along the wall, amidst yellow gorgonias and spirogyra, you will also be able to admire several species of colourful nudibranches; be careful here, however, because the current can be quite strong sometimes.
Only if you go further down to a depth of 40-45 metres will you be able to see fans of red gorgonias, and in the many gorges, amidst tiny branches of coral, dozens of lobster feelers will appear by magic; in the larger cracks and gorges usually some shy groupers and various shoals of sargos and corvinas like to hide.