The electric-blue water and pale cliffs of Polyaigos

Private cruise · Polyaigos (Poliegos)

Private Polyaigos Cruise to Galazia Nera

The largest uninhabited island in the Aegean — and you can only reach it by boat. From our Kimolos base it's just over a nautical mile across the channel.

An island left exactly as the sea made it

There are no roads on Polyaigos. No port, no village, no hotels, not a single permanent resident. Lying in the channel between Kimolos and Milos, it's roughly eighteen square kilometres of wild cliffs, hidden coves and some of the clearest water in Greece.

That isolation is the whole point. Because nothing has ever been built here, Polyaigos stays empty and quiet even at the height of a Cycladic summer. From our home base on Kimolos it sits close enough to reach in minutes, far enough to feel like the edge of the map.

We bring you here on a private boat, at your own pace, to swim and drift through a coastline most travellers never see.

Turquoise sea and white cliffs of Polyaigos in the Western Cyclades

What you'll see along the coast

Highlights of a Polyaigos cruise

Galazia Nera (Blue Waters)

The island's signature bay, and the reason most people come. A pale mineral seabed turns the water an almost luminous turquoise that fades to deep sapphire — the prime spot to drop anchor, swim, snorkel and paddle.

The multicoloured cliffs

Polyaigos is volcanic, and its coast is banded in white, pink and rust-red where minerals stain the rock. The colours shift with the light as you cruise, one cove opening onto the next.

Fanara sea cave

On the northern coast, a sea cave with a natural opening in its roof lets sunlight pour straight down onto the water inside. It's large enough to ease our dinghy inside when conditions allow — one of the island's most striking moments.

The Kalogeros rock formations

Sculptural pinnacles rising sheer from the sea, set against those painted cliffs. Best seen up close, from the deck, drifting slowly past.

The quiet beaches

Beyond Galazia Nera, the coastline hides Pano and Kato Mersini's white sand, Ammoura's shells, Fykiada and Faros — anchorages you'll often have entirely to yourself.

Protected Natura 2000 coastline of uninhabited Polyaigos

A protected wilderness

Treated with the respect it deserves

The whole island is part of the EU's Natura 2000 network — a Special Protection Area where Eleonora's falcons nest on the cliffs and migratory birds pass through. Its remote sea caves are also a breeding refuge for the Mediterranean monk seal, one of the rarest marine mammals on earth.

We cruise this coast the way it deserves: keeping our distance from the caves where seals may rest, anchoring carefully, and leaving nothing behind. The wildness you come to see is exactly what we work to protect.

There are no shops, tavernas or facilities of any kind on the island — so everything you'll need for the day comes aboard with us.

Make Polyaigos your own for a day

A private cruise to Polyaigos is yours alone — no strangers, no fixed schedule, no rush. Pair it with the painted coves of neighbouring Kimolos in one unforgettable day on the water.