FreeThe postcard village at the northern tip of the caldera: blue domes, white cave houses, captains mansions and a ruined castle where crowds gather for the most famous sunset in Greece. Free to wander — the trick is when you go.
A Bronze Age town buried by the great eruption about 3,600 years ago and preserved under ash, now walked on raised paths beneath a vast bioclimatic roof. Multi-storey houses, streets and squares — the Pompeii of the Aegean, and open all year.
Sail into the middle of the caldera, walk across black lava to the steaming crater of Nea Kameni, then jump in to swim to the warm, rust-coloured springs of Palea Kameni. The classic Santorini boat trip, in three to six hours.
Five hours under sail around the caldera on a small-group catamaran: swim stops beneath the Red and White beaches, the warm springs, a barbecue lunch or dinner cooked on board, drinks and hotel transfers. The sunset sailings are the most sought-after on the island.
The whole island in one guided day: Akrotiri with an archaeologist, the medieval village of Emporio, a swim on the black sand at Perissa, a winery tasting and the panorama from the high ground, ending with sunset in Oia. Pick-up included; site ticket extra.
An interactive museum in Megalochori that links the Atlantis legend to the eruption of Santorini, with augmented reality, a hologram of Plato and a multisensory show that recreates the earthquake, tsunami and eruption. About an hour, and a hit with families.
The cooperative winery of the island growers, on the caldera edge at Pyrgos, where tailor-made flights of volcanic Assyrtiko and sweet Vinsanto come with the most famous winery sunset in Greece. Book ahead for the terrace.
The treasure house of Akrotiri in the middle of Fira: Bronze Age wall paintings rehung in their original room layouts, painted pottery, and the tiny gold ibex. Small, superb and open all year (closed Tuesdays).
FreeThe best free thing on Santorini: about ten and a half kilometres along the rim of the caldera from Fira through Firostefani and Imerovigli to Oia, past chapels, Skaros Rock and the wild northern headland. Three to five hours, and worth every step.
FreeThe lively capital on the caldera edge: a cliff-top walkway of cafes and cave bars, the cathedral and the museums, the island bus hub, and a cable car or the zigzag Karavolades steps down to the old port where the boats leave. The best year-round base.
FreeThe highest village on the caldera rim, the quiet balcony between Fira and Oia, and the dramatic crag of Skaros below it, once the medieval capital of the island. A short, steep path leads out to castle ruins and some of the finest views on Santorini.
FreeThe hilltop village that was the capital before Fira: a protected maze of lanes spiralling up to the Venetian Kasteli, tiny chapels, wineries on its doorstep and a 360-degree view of the island. Lived-in all year, and lovely at sunset.