A view from Hamanako Service Area
|Primary outflows||Philippine Sea|
|Surface area||65.0 km2 (25.1 sq mi)|
|Average depth||4.8 m (16 ft)|
|Max. depth||16.6 m (54 ft)|
|Water volume||0.35 km3 (280,000 acre·ft)|
|Shore length1||114 km (71 mi)|
|Surface elevation||0 m (0 ft)|
|1 Shore length is not a well-defined measure.|
The lake has an area of 65.0 km² and holds 0.35 km³ of water. Its circumference is 114 km. At its deepest point, the water is 16.6 m deep. The surface is at sea level.
Lake Hamana is a commercial source of cultivated Japanese eel, nori, oysters and Chinese soft-shelled turtles. Fishers take sea bass, whiting, and flounder, among others. The lake has been developed as a resort area, with boating as a feature.
In ancient times, Lake Hamana was a fresh-water lake. However, a great earthquake in 1498 altered the topography of the area. As a result, the water in the lake is now brackish.
The old name for this lake is Tohotsu-afumi (遠つ淡海?), which means "distant fresh-water lake" and later changed to Tōtōmi (遠江?). From the perspective of the capital in the Kinai, Tōtōmi is more distant than the other famous lake, Chikatsu-afumi or Ōmi (now Lake Biwa), the "nearby fresh-water lake." The name Tōtōmi was also used for a former province in which the lake is located (Tōtōmi Province).
At the end of World War II two experimental Type 4 Chi-To tanks were dumped into the lake to avoid capture by Occupation forces. One was recovered by the US Army, but the other was left in the lake. In 2013 there were efforts to locate the remaining tank, but it was not found.
- Takagi, Shogo Lake Hamana searched for WWII sunken tank April 17, 2013 The Japan Times Retrieved April 3, 2016
This article incorporates material from the article 浜名湖 (Hamanako) in the Japanese Wikipedia, retrieved on December 11, 2007.
- Media related to Lake Hamana at Wikimedia Commons
- (Japanese)"浜名湖" (PDF). (260 KiB) (Hamanako), Ministry of Land, Infrastructure and Transport (Japan)
- (Japanese)"浜名湖サイクリングロード" (PDF). (719 KiB) (Hamanako Cycling Road), Ministry of Land, Infrastructure and Transport (Japan)
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