Group from Geneva (Oct. 2005) View onto the caldera from the hotel Canyons at the steep cliffs of Santorini Volcanic layers Red rocks and a church in the cliff of Santorini Group on Nea Kameni Whitish sulphate deposits near the fumaroles Bougainvilla blomsters Boat trip (Santorini) Pottery and obsidian artefacts from various periods (Minoan, Classical epoch)