The volcano of Santorini makes the sea around it very interesting. A boat can take you to see the caldera and its hot springs, as well as the surrounding islands, such as Thirassia. With a lot of sunscreen and good company, this could be a trip to remember, whether you prefer a sailboat or something more modern. If you’re an experienced scuba diver, then Santorini can offer you even more thrills, as the sea bottom, due to the volcanic eruptions, hides caves and cliffs and shipwrecks.
Santorini is also famous for its colorful beaches, due to the volcano. Perissa hosts the famous black beach, which is also the longest beach on the island, fully organized with umbrellas, beach chairs and shops (among which is a beach bar). Adjacent Perivolos’ beach is also black. Of special interest is the red beach, that is a bit harder to get to. Admittedly, the best beach of Santorini is Vlichada, a very organized beach with red cliffs looming over the swimmers.