The Impériaux are part of the Riou Archipelago and represent 3 rocks to the northeast of the island, making them one of Marseille's best-known dives.

The Impériaux are part of the Riou Archipelago and represent 3 rocks to the north-east of the island, making them one of the best-known dives in Marseille.

Plongée à l’aplomb de la pointe, superbe tombant, nous arrivons à une marche entre Riou et le Grand Conglué avec de multitudes trous. En revenant et remontant de gros blocs de pierres sur un plateau fourni en vie marine.

The Pierres Tombées dive site, located near the Pointe de Caramassaigne in Riou, is a popular spot for its spectacular rock formations. Accessible to intermediate to advanced divers, the site lies at depths of between 7 and 40 meters.

The Pierre de Cassis, located at the Grand Conglue rock, is a popular dive site for its underwater plateau, which gradually descends towards the open sea, ending in a beak. This site is accessible to intermediate to advanced divers, with depths varying between 20 and 40 metres.

Baou Rouge, near Marseille, is an ideal snorkeling site with its clear waters and fascinating rock formations. Accessible from depths of 1 to 10 meters, it's perfect for swimmers and beginners alike.

Rocky reef starting on Plane and heading towards Riou. Small drop-off with many schools of fish: on the high rocky scree transforming into a small plateau. Heading out to sea, a canyon forms between the reef and a hill below -marine. the current can be very strong.

Between underwater plateaus, tunnels and drop-offs, there’s something for everyone.The main plateaus are between 8 and 12 metres long.On the faults side: a ten-metre tunnel with several possible entrances/exits and an arch/grotto.Beautiful drop-offs of up to 30 metres on the Cap de Plane side.

Beautiful falling at a maximum depth of 40m with a small plateau around 30m, this enormous cave-cathedral begins at 25m to approximately up to 14m and advances about ten meters inside. ​

A beautiful drop to a maximum of 40 m with a small plateau at around 30 m, this enormous cathedral-cave starts at 25 m and drops to around 14 m, advancing by around ten metres on the inside.