Anapa is the biggest children seaside resort in Russia. In Summer its population (50000) increases 40-60 times. Blooms of the green filamentous algae of genus Cladophora (C.albida, C.glomerata, C.vagabunda) were first observed at Anapa coast in early 80s, and during last decade they became annual. The cause of the blooms is the heavy discharge of organic and inorganic nutrients from i) the town sewerage ii) ajacent agricultural fields iii) mountain soil. The vegetation usually starts in February-March and continues through to November; storms interrupt blooms throwing the seaweed on shore. Fine sandy sediments prevent the growth of other macroalgae, whereas Cladophora grows unattached, forming tangles that cover up to 100% of the bottom, with the biomass 300-400 gm-2. Due to the very shallow waters at Anapa Cladophora is found 800m off shore where depth is not more then 10 m. Alongshore current directed north of Anapa provides the resourse for the bloom 15km off the town where children summer camps situated.Waves drive seaweed to beach, which results in formation of brown gelly mass near surfline; at the central beach of Anapa bulldozers are employed to remove decaying Cladophora mass. The bloom became a concern for those involved in touristic business because of the tourists\' complaints.