Koryaksky
A cone above the city.
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The Volcanoes of Kamchatka are a large group of volcanoes on the Kamchatka Peninsula in Russia's far east, around 160 in all, 29 of them active. Six sites from the group are on the UNESCO list, with a rare density of volcanoes and related features. It is a remote land of few roads, for those who want raw nature unlike almost anywhere else. The highest is Klyuchevskaya Sopka at 4,750 metres, the largest active volcano in the Northern Hemisphere. Kronotsky, with its perfect cone, has been called a prime candidate for the world's most beautiful volcano. The Valley of Geysers at the centre of the peninsula was partly destroyed by a mudslide in 2007. Earthquakes are common here because of the Kuril-Kamchatka Trench. The easiest to reach are the three visible from Petropavlovsk-Kamchatsky: Koryaksky, Avachinsky and Kozelsky. Koryaksky rises as a proud cone streaked with snow above the city. Gorely has a broad crater with white steam rising and an acid turquoise lake. At Tolbachik you find black lava fields and lone red rocks. Avachinsky is about 29 km from Petropavlovsk-Kamchatsky in a straight line. Most sites can be visited only with a local company, by special vehicle or helicopter. Beware of gases at the craters, and follow your guide near bears. The season is short, from July to September, so book early. The UK Foreign Office advises against all travel to Russia, and non-Russian bank cards may not work, so read the current advice before you plan.
A cone above the city.
Steam and a turquoise lake.
Black lava.
Kamchatka Peninsula, far east of Russia
Usually yes, as roads are few and sites are reached by special vehicle or helicopter.
By flying to Petropavlovsk-Kamchatsky, as no road links it to western Russia.