One of Oia’s first hotels when it opened in 1992, Esperas was carved from the volcanic cliffs of Santorini — literally transforming ancient caves into 21 cave-house suites and studios. Set on the edge of a hanging cliffside overlooking Ammoudi Bay and the world’s most celebrated sunset, it blends authentic Cycladic tradition with private terraces, plunge pools, jacuzzis, and the Ombra restaurant. Adults only hotel.