Koryaksky volcano, andesitic cone seen from shoulder of Avacha volcano, Kamchatka, East Siberia, Russia

Koryaksky volcano seen beyond walkers on crater rim of Avacha volcano, Kamchatka, East Siberia, Russia

Hikers on rim of old crater, Avacha volcano, Kamchatka, East Siberia, Russia

Koryaksky volcano, 3456m high, conical andesite volcano, Kamchatka, East Siberia, Russia

Avacha volcano, lava plug formed in crater in 1991, Koryaksky volcano beyond, Kamchatka, East Siberia, Russia