Deepest lakes & reservoirs in Japan by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 5 articles we have published for Japan lakes.
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Below are lakes within Japan > Compared by maximum depth in feet. This list does not represent all lakes in Japan, only the 5 Japan lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Lake Mashu (Hokkaido Region, Japan, Japan) |
694 ft | Also known as Lake Masyu, Mashu-See, Mashu-ko Akan National Park, established in 1934 on the island of Hokkaido, Japan, is a pristine and wild landscape. The park is known for its vibrant blue, cl… |
| Fuji Five Lakes (Chubu Region, Japan, Japan) |
459 ft | Also known as Fujigoko, Lake Kawaguchi, Lake Motosu, Lake Saiko, Lake Shoji, Lake Yamanaka Famous Mount Fuji and its five scenic lakes are the biggest tourist attractions in the Chuba Region of Japan. The five lakes ringing the northern slop… |
| Lake Biwa, Japan (Japan, Kansai Region, Japan) |
341 ft | Also known as Biwako Lake Biwa, sometimes known as Biwa-ko, is Japan’s largest lake with more than 165,000 acres. Lake Biwa is located in Japan’s Kansai region in the Shig… |
| Lake Ashi (Japan, Kanto Region, Japan) |
143 ft | Also known as Ashi-no-ko, Hakone Lake One of Japan’s most popular holiday destinations is Lake Ashi. Ashi-no-ko, as it is also called, is a crater lake nestled along the southwest wall of… |
| Okama Crater Lake (Japan, Tohoku Region, Japan) |
90 ft | Also known as Goshiki Numa, Five-Color Pond Okama Crater Lake is known as one of the world’s most beautiful crater lakes. Located in the caldera of Mount Zao, Okama welcomes visitors to this rec… |