Three days is enough to see the best of Milos if you plan around two things: the wind and the geography. The island is shaped like a horseshoe around a large bay, with the port of Adamas on the inside, Plaka and Trypiti on the ridge above it, the north coast to one side and the south coast to the other. Distances are short but the roads are winding, so grouping sights by area saves hours. The wind matters because the strong north wind known as the meltemi can cancel or reroute boat trips, so the sea day is the one to schedule first.
Before you go
Reserve your boat trip early, and choose a day in the first half of your stay so that you have a spare day if it is cancelled. Decide whether you will rent a car or scooter in Adamas; most visitors do, because buses are limited. Reserve a taverna table for the Kastro evening if you want one, and check opening days for the museums and the catacombs with the Tourist Office, since days and hours change with the season.
Day one: the sea
Start with the headline experience: a full-day cruise to the white arches of Kleftiko, or the round-the-island cruise that includes Polyaigos. Both include swimming, snorkelling and lunch on board, and both leave from harbours near Adamas or Pollonia in the morning. If you prefer a shorter outing, take the half-day Kleftiko tour and spend the afternoon at a south-coast beach such as Paliochori, which has sunbeds, tavernas and clear water. In the evening, eat on the Adamas waterfront and go to bed early.
Day two: villages, history and sunset
Spend the morning in the Trypiti area, where several sights sit within a few minutes of each other: the Early Christian catacombs, the ancient theatre and the spot where the Venus de Milo was found in 1820. Continue down to Klima for a coffee or lunch beside the painted boat houses. In the afternoon, visit the Archaeological Museum in Plaka to see the replica of the Venus de Milo and the finds from Phylakopi, then wander the lanes. Climb to the Kastro about forty-five minutes before sunset to find a place on the walls. Have dinner in Plaka afterwards, and book ahead in July and August.
Day three: the white coast and the south
Begin at Sarakiniko early, before the heat and the crowds, when the white volcanic rock glows in soft light and the water is calm. Continue along the north coast to the fishing hamlets of Mandrakia and Firopotamos for a swim and a fish lunch. In the afternoon, drive to the south coast: Paliochori for sunbeds and sand-cooked food, or the cove at Tsigrado if you are comfortable with the rope descent. If the sea is calm, finish with a sunset cruise or a sunset kayak at Papafragas.
If you have a car
The roads are narrow and often unpaved on the way to beaches, so go slowly and check your rental agreement for rules about dirt tracks. Fuel up in Adamas. Parking is tight in Plaka and Klima at sunset, so arrive early. If you prefer not to drive, a guided van tour or a jeep safari covers the highlights, and the local bus connects Adamas, Plaka, Pollonia and some beaches.
If the weather changes
On a windy day, the south coast is usually more sheltered than the north, so swap your plan: spend the day at Paliochori or Pollonia and save Sarakiniko for a calmer morning. The museums, the catacombs and the Mining Museum in Adamas are good alternatives for midday heat or rough seas.
What to skip, and what to add
If you have a fourth day, add a trip to Kimolos by the local ferry from Pollonia, or a self-drive boat. If you have only two days, combine the cruise with a late Kastro sunset and Sarakiniko at sunrise, and skip the museums. Either way, leave room for slow moments, because the island rewards lingering: a long lunch in a harbour village, a swim in a cove with nobody else in it, a walk down a lane in Plaka as the lights come on.
Practical notes
Bring a hat, sun protection, sturdy sandals and a light layer for the evening breeze. Carry some cash for small tavernas and beach bars. Book restaurants for the evenings in July and August, and expect high prices at the busiest times. Respect fragile places: keep to paths, take rubbish with you and follow the rules at archaeological sites.