, sometimes Saiko, is one of the

Fuji Five Lakes is the name of the area located at the base of Mount Fuji in the Yamanashi Prefecture of Japan. It has a population of about 100,000 and sits about above sea level. The five lakes created in the area by previous eruptions of Mount Fuji has give ...

and located in the town of

Fujikawaguchiko is a town located in Yamanashi Prefecture, Japan. , the town had an estimated population of 26,542 in 10,618 households, and a population density of 170 persons per km2. The total area of the town is . Geography Fujikawaguchiko is located in so ...

in southern

Yamanashi Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Yamanashi Prefecture has a population of 787,592 (1 February 2025) and has a geographic area of 4,465 km2 (1,724 sq mi). Yamanashi Prefecture borders Saitama Prefecture to the n ...

near

Mount Fuji is an active stratovolcano located on the Japanese island of Honshu, with a summit elevation of . It is the highest mountain in Japan, the second-highest volcano on any Asian island (after Mount Kerinci on the Indonesian island of Sumatra), a ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. It is the fourth of the

in terms of surface area, and second deepest, with a maximum water depth of . Its surface elevation of is the same as for

Lake Motosu is the westernmost of the Fuji Five Lakes and located on the border of the towns of Fujikawaguchiko and Minobu in southern Yamanashi Prefecture near Mount Fuji, Japan. Lake Motosu is the third-largest of the Fuji Five Lakes in terms of surface ...

and

Lake Shōji is one of the Fuji Five Lakes and located in the town of Fujikawaguchiko in southern Yamanashi Prefecture near Mount Fuji, Japan. Lake Shōji is the smallest of the Fuji Five Lakes in terms of surface area, and third deepest, with a maximum wa ...

, confirming that these three lakes were originally a single lake, which was divided by an enormous lava flow from Mount Fuji during an eruption from 864 to 868 AD. The remnants of the lava flow are now under the Aokigahara Jukai Forest, and there is evidence to indicate that these three lakes remain connected by underground waterways. The lake is within the borders of the

Fuji-Hakone-Izu National Park is a national park in Yamanashi, Shizuoka, and Kanagawa Prefectures, and western Tokyo Metropolis, Japan. It consists of Mount Fuji, Fuji Five Lakes, Hakone, the Izu Peninsula, and the Izu Islands. Fuji-Hakone-Izu National Park covers . Rat ...

. Saiko has no natural drainage, but an artificial channel now connects it to Lake Kawaguchi. As with the other Fuji Five Lakes, the area is a popular resort, with many lakeside hotels, windsurfing facilities, camp sites, and excursion boats.

Japanese white crucian carp The Japanese white crucian carp, also known as Japanese carp, white crucian carp, or gengoro-buna (''Carassius cuvieri''), is a species of freshwater fish in the carp family (family Cyprinidae). It is found in Japan and, as an introduced species, ...

, ''wakasagi'' and '' Kunimasu'' were introduced to the lake in the

Meiji period The was an era of Japanese history that extended from October 23, 1868, to July 30, 1912. The Meiji era was the first half of the Empire of Japan, when the Japanese people moved from being an isolated feudal society at risk of colonizatio ...

, and sports fishing is also popular. However, ''Kunimasu'', which had been introduced to a number of lakes in Japan in the Taishō period were believed to have died out and become extinct, with the last reported sighting in 1935, until rediscovered in Lake Sai in 2010.'Extinct' trout species rediscovered. Yomiuri Shimbun Dec. 16, 2010
/ref>

West Lake The West Lake (; ) is a freshwater lake in Hangzhou, China. Situated to the west of Hangzhou's former Hangzhou City Walls, walled city, the lake has a surface area of , stretching from north to south and from east to west. In the lake are four ...

Hangzhou Hangzhou, , Standard Mandarin pronunciation: ; formerly romanized as Hangchow is a sub-provincial city in East China and the capital of Zhejiang province. With a population of 13 million, the municipality comprises ten districts, two counti ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

, is written with the same ''

kanji are logographic Chinese characters, adapted from Chinese family of scripts, Chinese script, used in the writing of Japanese language, Japanese. They were made a major part of the Japanese writing system during the time of Old Japanese and are ...

'' as Lake Sai.

Notes

References

*Rafferty, John P. Plate Tectonics, Volcanoes, and Earthquakes. Rosen Publishing (2010), {{Authority control Saiko Mount Fuji Fujikawaguchiko, Yamanashi

See also

Notes

References