Day 9 of Kamchatka, Land of Fire Bears: The Valley of ...
Various of the hot springs have associated sulphur, opal, pyrite and mercury deposits. Most of the colouring at the spring sites is due to temperaturesensitive algae. Towards the east, a trail leads through alder bushes up the Belaya dome; this is formed of slabjointed dacite porphyry that varies from dark lava and tuff to glassy obsidian and ...