Largest Lake of Nepal: Rara Lake
Rara Lake is the largest lake of Nepal, located in Mugu district in the far western region of Nepal, near Gam Ghadi (district-headquarter of Mugu) and Talcha airstrip. It takes around 3 to 4 days of walking to reach Rara from Jumla. The covered surface area of Rara lake is around 8 square kilometer and the perimeter 9 kilometer. This lake is 5 kilometers in length, 2 kilometers in wide and maximum depth 167 meter. It is situated at the altitude around 3060 meter from the sea level. Rara is an unique spot in Nepal. and situated in the Rara National Park.
Largest Lake of Japan: Lake Biwa (Biwa-ko)Lake Biwa ( Biwa-ko) largest freshwater lake in Japan, located in Shiga ken (prefecture), west-central Honshu. Approximately 40 miles (64 km) long from north to south, up to 12 miles (19km) wide, the lake covers an area of 259 square miles (672 square km). Its name refers to the musical instrument (pipa) that the lake resembles in shape. Its sole outlet, the Yodo River, flows from its southern tip to Osaka Bay. Lake Biwa is noted for its pearl culture industry. Its great scenic beauty, long a subject of Japanese poetry, makes it one of Japan's major tourist attractions.
and Information collected during Biwa lake visit