La Catis
Rock head on a large plateau off Saint-Cast, with a big boulder field on its northern side. Saint Malo Plongée Émeraude counts it among the richest sites of the bay for marine life, often with good visibility; depths run from about 15 m to 30–40 m.
Facts
- Region: France – Atlantic & Channel
- Area: Saint-Malo & Côte d'Émeraude
- Depth: 15–40 m
- Level: intermediate
- Current: moderate
- Type: reef, pinnacle
- Coordinates: 48.7, -2.2588
- Highlights: large rock head on a wide plateau, big boulder slope on the north side, often clear water
- Tips: Reached by boat from Saint-Cast or Saint-Malo; the deeper part suits Level 2 / Advanced divers.