The bay opens like a crater flooded by the sea, and that is exactly what it is. Milos owes its shapes to its volcanic past: white cliffs, ochre rocks, coves cut as if with a knife. Ships drop anchor in this deep harbour, one of the largest in the Mediterranean, and tenders land passengers in the heart of Adamas, the port village with its whitewashed houses.

Adamas, the Starting Point

The landing opens directly onto the main square, where the bus stop, taxi stand and shaded terraces sit side by side. Everything is decided here. The island doesn't lend itself well to total improvisation: distances are short, but the most striking landscapes require a short ride. Taking five minutes to plan your day over a Greek coffee saves a lot of hesitation.

Sarakiniko, a Lunar Landscape

A few kilometres north of Adamas, Sarakiniko is unlike anything you know. Wind and waves have polished a pure white volcanic rock, sculpted into frozen waves that plunge into turquoise water. You walk barefoot as if on a warm glacier, swim in narrow inlets and frame otherworldly perspectives. Good shoes help on the smooth surfaces, especially on windy days. It is the memory most travellers take away from the island.

Plaka and the Old Kastro

The island's capital is perched five kilometres from the landing, on a hill facing the open sea. Plaka lines up its marble-paved lanes, vaulted passages and flowery balconies all the way to the kastro, the old fortified quarter crowning the summit. The climb is made on foot, without major difficulty, and the reward comes all at once: the entire gulf spreads out below, with white villages clinging to its shores.

The Ancient Theatre and the Catacombs

Near the village of Trypiti, a marble theatre has faced the sea since Antiquity. It was in a nearby field that a farmer unearthed the Venus de Milo in 1820, now in the Louvre; a plaque marks the spot. A little lower, catacombs dug in the early centuries of Christianity rank among the oldest in Greece. The whole site can be explored in an hour and gives the island a depth its beaches don't suggest.

What to Plan For

• Buses link Adamas to Plaka, Trypiti and Sarakiniko in season; schedules are posted on the square.
• Taxis are few: it is best to arrange your return when you set out.
• Boat excursions to Kleftiko, a former pirate hideout with sea caves, take up almost a full day; book only if the ship's schedule allows.
• A hat and water are a must: shade is scarce outside the villages.

Before Heading Back on Board

The port village has enough to fill the end of the day: a mining museum telling the story of obsidian and perlite, geological riches exploited for millennia, artisans' shops and tavernas where octopus dries in the sun outside the kitchens. A plate of grilled fish facing the harbour, as the light sinks over the hills, ends the day better than any program.

The tender heads back to the ship across the ancient crater, and the cliffs take on hues of rust and honey at sunset. Milos doesn't try to dazzle; it simply lets its rocks speak. Long after leaving the Cyclades, you catch yourself picturing that mineral white set on a dark sea, and searching a map for a way to go back.