Milos Island is located in the south-western part of the Cyclades archipelago and looks like an enlarged version of Santorin (Thyra). Milos like Santorin is a volcano, but extinct, which had a huge eruption that created a large natural harbor in the sunken caldera.
The closest major island of the Cyclades to Milos is Sifnos, 12 miles to the north-east. The legendary Santorin is 45 miles to the south-east. The closest place on the mainland is the south-eastern tip of Pelaponessos, 55 miles west of Milos.
Milos is often included in the itineraries of yachtsmen who rent yachts in Athens and Lavrio for their trip to the Cyclades. When renting a yacht for a week, Milos is usually the furthest point of the trip.
Most of the possible moorings on Milos are in the large bay of the same name. The island's ferry port and the yacht marina of Adamas are also located there.
The island is famous for the statue of Venus of Milos found there, which is now in the Louvre. Milos has many attractions, both historical and architectural, as well as natural, so I recommend when planning a yacht trip to take a day to explore the island.