This privately run zoo in the Kusatsu Onsen hot spring town is known as the highest-altitude zoo in Japan. Inside a 15 m-tall dome heated by hot spring water, a subtropical climate lets you see tropical plants and animals even in chilly Kusatsu.
Inside the dome you'll find reptiles such as crocodiles, snakes, and lizards, while the capybaras are a crowd favorite. On weekends there are hands-on encounters with snakes and capybaras, and you can also try a doctor fish ("beauty fish") hand or foot bath.
As listed by the Kusatsu Onsen Tourism Association.
Hours vary by day and season. Check the official website before you go.
As listed by the Kusatsu Onsen Tourism Association
Per smartphone. Admission not included; several people may share one phone (from April 1, 2026; sold at the shop)
Prices include tax and may change. Check the official website before buying.
Spring arrives late at this altitude, but the dome stays warm year-round thanks to hot spring heat.
In August and September, snake encounters on weekends and the Capybara Encounter Plaza on Sundays continue.
Easy to combine with hot spring hopping during Kusatsu Onsen's autumn foliage season.
Even in snowy Kusatsu, the subtropical dome is warm and comfortable for viewing.
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PR7.9Prices and availability are shown on Agoda.
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Last checked: 2026-10-01
