Mutnovsky volcano has a complex and unusual structure. Its slopes are surrounded by sheer cliffs. A glacier descends from the top of the volcano and powerful streams of steam erupt through its cracks to the surface. Here you can see sizzling fumaroles surrounded by bright yellow collars of sulfur crystals, mud bubbling cauldrons filled with black water and impressive craters. At the foot of the volcano there is Opasny canyon, into which an 80-meter waterfall falls.
Gorely volcano is located in a vast and picturesque caldera. It is unique for the "collection" of various craters at its summit. The edges of some of them cross each other and create a very bizarre and unique pattern. The main craters are surrounded by steep walls 150-200 m high, have a well-shaped structure and are filled with acid lakes.