is a

lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...

Miyakonojō is a city in Miyazaki Prefecture, Japan. The city was founded on April 1, 1924. As of June 1, 2019, the city has an estimated population of 161,137, with 70,549 households and a population density of 247 per km2. The total area is 653.36 km2 ...

and Takaharu in

Miyazaki Prefecture is a prefecture of Japan located on the island of Kyūshū. Miyazaki Prefecture has a population of 1,073,054 (1 June 2019) and has a geographic area of 7,735 km2 (2,986 sq mi). Miyazaki Prefecture borders Ōita Prefecture to the north, Kuma ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

Geography and geology

The height above sea level is 305 m, the depth 93.5 meters, the deepest in Japan as the crater lake. There is no outflow of water from the lake. The lake is encircled by forests, and there is a park called ''Miike Yacho(Birds) no Mori'' and a camp site. Waterfowls such as mandarin ducks, teals, spectakled teals are seen. The lake was created by a crater resulting from a magma vapor eruption about 4200 years ago. Flatstones are seen in the layers of ground near by, called Miike floatstones or Miike bora.Miyazakiken Sogo Hakubutsukan '' Report on Mt. Kirishima'' 2004

History

Along the border of the lake, there was mythologically 7 ports, and

Emperor Jinmu was the legendary first emperor of Japan according to the '' Nihon Shoki'' and '' Kojiki''. His ascension is traditionally dated as 660 BC.Kelly, Charles F"Kofun Culture"Lakes of Japan Landforms of Miyazaki Prefecture {{Miyazaki-geo-stub