Blagodaty is a meromictic lake separated from the Udobnaya Sea bay by a narrow neck. The lake is connected with the sea during periods of high water content. The northwestern part of the lake is swampy. The peat deposits of the catchment are 0.1–1.0 m thick (Voropaeva, 2012). The eastern part of the littoral is a strip of aquatic and swamp vegetation.
Golubichnoe is a freshwater lake, with yellow-coloured water. The lake is surrounded by forest (Mongolian oak, alder, birch, etc.). A stream flows out of the lake into a swampy meadow located 25 m from the lake (Sikhote-Alin Biosphere Reserve, 2009). A number of rare and relict species of aquatic flora grow in Golubichnoe Lake (Nesterova and Pimenova, 2012).