Lake Biwa Museum has a world-class freshwater aquarium showing Lake Biwa's endemic species and more. Open 9:30 am - 5 pm, closed Mon. and the day after a national holiday. Admission 600 yen for adults.

It shows Lake Biwa's history, fish and wildlife, coexistence with people, and a large lake-fish aquarium. It is also a research facility with a number of researchers and curators.