What you will see

What you see diving in Jávea: a marine life guide

Without overselling the Mediterranean as a tropical reef. What is here is different, and you have to know how to look at it.

23 August 2026

People arriving from the Caribbean or the Red Sea often surface from their first Mediterranean dive looking disappointed, and that is a problem of expectation rather than of the sea floor. There are no coloured corals here and no huge shoals in plain sight. There is something else: a seascape where almost everything is hidden, and where the person who knows how to look surfaces with five things to describe while the person who does not has none.

Posidonia, which is not seaweed

Those green meadows on the bottom are a marine plant with flowers and roots, not an alga, and they are the reason the water is as clear as it is here. They function as a nursery: most of what you see as juveniles lives tucked inside them. A healthy posidonia meadow is the sign that a site is in good shape, and also the reason not to anchor on top of one.

What you almost always see

• Sea bream and salema, in groups, grazing algae off the rock. The first to show up and the least impressive until you see a big one.
• Damselfish: clouds of small dark fish over the rock, especially along the walls.
• Octopus, which you will not spot by looking for an octopus. You spot oddly arranged stones in front of a hole, and the octopus is behind them.
• Red mullet working the sand, and the occasional brightly coloured wrasse among the rock.

What takes luck

• Grouper: where there is protection and no fishing, they show up and they are enormous. The best argument going for marine reserves.
• Nudibranchs — sea slugs in improbable colours and the size of a fingernail. They require going slowly and looking closely at the rock.
• Mediterranean barracuda in a shoal, more frequent towards the end of summer.
• Rays and other flatfish, half buried in the sand, usually seen just as they bolt.