The Tunnel (Samos) | Samos’ Lit Swim-Through

Site Overview

The Tunnel at Samos is a fun, shallow swim-through carved into the island’s limestone coast, where divers fin through a lit passage and emerge into a small chamber dressed in nudibranchs and anthias. Diving the tunnel is a gentle, sheltered experience suited to Open Water divers, with octopus and morays in the recesses and the bright Aegean water making the white rock glow. The site is close to Kokkari and reliable enough for a lovely wide-angle photography trip as much as a dive. It is a perfect half-day from Samos and a great second dive of the day. For visitors who want an easy taste of cavern diving without the commitment of a deep or technical site, The Tunnel is an accessible, fish-filled introduction. The Tunnel (Samos) sits within Aegean – Sporades & North-East Aegean and is best described as a cave and cavern dive. The water here is typically clear, and the profile — from around 3 m down to 22 m — gives beginner divers a rewarding range of routes. Among the life you can expect are Nudibranch, Common Octopus, Mediterranean Moray, Anthias, Glassfish. The site rewards a slow, observant approach, and good buoyancy keeps both diver and reef safe. With sensible planning around weather and boats, it ranks among the more memorable stops on a Greek diving trip.