2 Day Tour Starting From €265 Santorini Island Escape Keytours, Athen, Greece. Experience Santorini with this 2 day tour starting from €265 at Keytours, Athens, Greece. Santorini, this former volcanic island offer amazing views from the caldera, unique sunset from Oia village and great red, white and black beaches. Includes: Round trip economy ferry tickets. Accomodation with breakfast on the island. Terms & Conditions: Offer valid until 31st December, 2016.