Here are a few more photos from Santorini. The panorama above was taken atop Profiti Ilia, the highest point in Santorini, looking north. You can see Oia at the tip of the island, sort of hooking left. The airport is located on the eastern side of the island where it is more flat.
UL: This was taken on the volcano as we hiked to the summit. The landscape was pretty bare and boring.
UR: Black beach, color of the sand is determined by which layer of lava is exposed.
LL: Red Beach. There was also a White Beach, but you can only access it by boat.
LR: Some more blue structures in Santorini.