Isla de Mouro – El Túnel
El Túnel is a tunnel-like cavity on the west side of Isla de Mouro at 10-12 m: Mourosub describes about 40 m of single-file tunnel and recommends a torch at the start, while Buceo Pedreña says divers can enter about 10 m before turning back out. Position estimated from the nearest coast or published location text, for orientation only.
Facts
- Region: Spain – Atlantic North (Galicia, Asturias, Cantabria, Basque Country)
- Area: Cantabria
- Depth: 10–12 m
- Level: intermediate
- Current: moderate
- Type: cave, reef
- Coordinates: 43.4731, -3.7572 (approximate)
- Highlights: about 40 m tunnel (Mourosub), single-file passage
- Tips: Carry a torch; sources differ on the length of the passage, so follow the guide's briefing.