Fuji Spring Water Aquarium

A fresh-water fish aquarium using the clear spring waters from Mt. Fuji.

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The Fuji Spring Water Aquarium, located on the grounds of Sakana Park, specializes in fresh-water fish. Here you’ll find a large variety of fresh-water fish, mostly caught in the lakes and marshes around Yamanashi Prefecture.

The center aquarium inside features a double-layered tank, which allows two tanks of both large and small fish to appear against each other at the same time.
The aquarium is also home to a large-scale glass window that shows the lake just outside, with views into a world of 1-m long sturgeon and some 20 other varieties of 300 fish as they swim by. On the opposite side of the lake sits a backdrop of forest trees, making it look as if you’re swimming through an underwater world inside a forest.
In early summer, schools of 8,000+ ayu (Japanese Sweetfish) are another must-see.


  • One of Japan’s only aquariums specializing in fresh-water fish.
  • The tank waters are made with the extremely clear spring waters of Mt. Fuji, making it look as if the fish are almost swimming through thin air.
  • Located inside Sakana Park, home to a small stream and playground area.
  • Just steps from nearby tourist destinations, Oshino Hakkai and Lake Yamanakako


  • Entrance


  • Double-layered Tank

    Double-layered Tank

  • Double-layered Tank

    Double-layered Tank

  • Tatami floor space to sit back and enjoy a view of sturgeon and other fish as they swim in the lake outside.

    Tatami floor space to sit back and enjoy a view of sturgeon and other fish as they swim in the lake outside.

  • Map of the grounds

    Map of the grounds


  • 美蘭


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Name in Japanese
Postal Code
3098-1 Shibokusa, Oshino-mura, Minamitsuru-gun, Yamanashi (Inside Sakana Kouen)
Business Hours
July-September 9:00am-6:00pm
October-June 9:00am-5:00pm
Aquarium Closed
Tuesdays (Wednesdays if Tuesday is a Holiday)
Entrance Fee
Adults: 420yen, Children: 200yen, Infants & Toddlers: Free
Approx. 20 min. bus ride from Mt. Fuji Station on the Fujikyu Railway
Official Website
Official Website (Japanese)