L'Impérial de Terre
The landward Impérial rock off Riou, with tunnels at the bottom of its eastern side and a fine wall on the north. Two biological curiosities are noted here: a patch of the introduced hard coral Oculina patagonica at about 4 m and the rare gold coral anemone Savalia savaglia growing on red and white gorgonians on the northern wall.
depth: 5–26 m