[Junsainuma Swamp in Nanae] Water Shield Grows in Freshwater Swamp

Onuma Quasi-National Park

Onuma Quasi-National Park (大沼国定公園) is a quasi-national park at the foot of Mt. Komagatake (駒ヶ岳) in the southern part of Hokkaido, and is between Nanae town, Shikabe town and Mori town. Its area is 9,083 ha. The park has been designated as the quasi-national park since 1958, and 2 million tourists come. It consists of the Mt. Komagatake of 1,131 m elevation, an active volcano, Lake Ounma (大沼湖), Lake Konuma (小沼湖), Junsai Swamp (蓴菜沼), and beautiful scneries are highlights. The Onuma Quasi-National Park has been chosen as one of The 3 New Views of Japan (新日本三景) together with Miho-no-Matsubara (三保の松原) in Shizuoka prefecture and Yabakei (耶馬渓) in Oita prefecture since 1915. It is also famous for fall foliage, and has been chosen as one of The 100 Best Fall Foliage Spots in Japan (日本紅葉の名所100選). When the Mt. Komagatake erupted from 50,000 to 30,000 years ago, a river was dammed by flowing mud flood, and those lakes were created. Wetlands have been registered under the Ramsar Convention since 2012, and wild waterfowls such as Goose and Duck rest their wings on the surface of the lake. Article is here