CC BY-SA 4.0, Ioannis Fakis, Wikimedia Commons

Snorkel· Kastellorizo (Megisti)· Greece — Dodecanese, Sporades & North Aegean

Blue Cave (Kastellorizo)

36° 7.4′ N · 29° 34.4′ E

Fokiali ('seal's refuge'): a sea cave 40–50 m long, 25–30 m wide and 20–25 m high on Kastellorizo's south-east coast, larger than Capri's Grotta Azzurra. Sunlight refracted through the water fills it with electric blue.

Practical

Wikipedia: the entrance is barely 1 m above the sea, so it can be visited only by small boat and only in calm conditions; best early in the morning when the sun is low. Go by dinghy in a flat calm or with a local boatman from the harbour. Visitkastellorizo.gr lists Blue Cave visits among local businesses. Do not take a yacht close in. Swim inside only with a lookout outside; swell can close the entrance.

Best for

Early-morning dinghy trip into a glowing cave

Season

Calm mornings only