This dormant crater lake, 13km in circumference, was formed around AD 969. It sits at an altitude of 2194m and is surrounded by rocky outcrops and 16 mountainous peaks. You can follow a fixed route that takes you around part of the crater lip with panoramic views of the lake below. Legend has it that the lake is home to a large, but shy, beastie that has the magical power to blur any photo taken of him.
