This popular Greek island – that is actually a water-filled volcanic crater in the Aegean Sea – is famous for its enormous cliffs, dramatic volcanic landscape, colorful red and black sandy beaches and luxurious hotels, but isn’t really considered a snorkeling destination. It is true that Santorini doesn’t offer such rich marine life like other islands in the country, for example Crete or Corfu, but it is still worth bringing your mask and fins to explore interesting underwater rock formations in the clear waters. To go snorkeling in Santorini, these are the best spots you should visit!