The beach is situated within a natural bay formed by a volcanic caldera that partially collapsed into the ocean.
The dark sand coloration is a direct result of the erosion of Tenerife’s basaltic volcanic rock over centuries.
Despite being a public beach, it serves as an active docking point for small artisanal fishing boats.
The surrounding landscape is defined by steep, terraced cliffs typical of the Icod de los Vinos coastline.
Puerto de San Marcos is a natural cove located on the northern coast of Tenerife, characterized by its distinctive dark volcanic sand. The beach is sheltered by high cliffs, creating a relatively calm swimming environment compared to the open Atlantic waters nearby. It functions as a small fishing port, retaining a traditional village atmosphere alongside its recreational area. Amenities include public restrooms, showers, and proximity to local restaurants serving fresh seafood. The beach is accessible via a concrete ramp and surrounding promenade. While popular with locals, it remains a smaller-scale alternative to larger tourist-heavy coastal destinations on the island.
From the upper viewpoint on the road leading down into the port, capturing the contrast between the dark sand, turquoise water, and the colorful fishing boats.
Bring water shoes, as the seabed can be rocky in certain sections beneath the sand.
Check local tide charts, as the beach area shrinks significantly during high tide.
Visit during weekdays to avoid high occupancy from local residents during weekends.
Do not attempt to park directly on the narrow waterfront road during weekends, as turning space is extremely limited.
Standard beach attire is expected; refrain from climbing on the private fishing boat moorings.
