Travel in Gunma
Kusatsu Nettaiken
Kusatsu Nettaiken · 草津熱帯圏
Explore Kusatsu Nettaiken’s tropical dome to see animals during your hot-spring stay. Set aside time for a visit between bathing days.
Kusatsu Nettaiken: tourism association fees, hours and walk Official sources Kusatsu Nettaiken: official facility name and events

Visitor information
Address
群馬県吾妻郡草津町大字草津286
286 Kusatsu, Kusatsu, Agatsuma District, Gunma 377-1711, Japan
Location on the mapAdmission
Admission costs 1,300 yen for adults, 1,000 yen for high school students, or 800 yen for children aged four and older.
Opening hours
Tourism association information lists 08:30–17:00, with no regular closing day. A 2026 tourism brochure gives 09:00–17:00. If visiting early, ask the facility to confirm its opening time. Confirm last admission before visiting too.
What to see at Kusatsu Nettaiken
Animals in the tropical dome
Walk through the tropical dome and see the animals. For animal-contact events, check the facility’s same-day event information separately.
Kusatsu Nettaiken: official facility name and events Kusatsu Nettaiken: tourism association fees, hours and walk
How to get to Kusatsu Nettaiken
Kusatsu Nettaiken is about 12 minutes on foot from Kusatsu Onsen Bus Terminal. Follow the tourism map and signs on site to the entrance.
Kusatsu Nettaiken: tourism association fees, hours and walk Kusatsu Nettaiken: official facility name and events
Before you visit
Check animal-contact events separately
For animal-contact events, check the facility’s same-day guidance. General viewing and contact events follow separate information. Ask the facility about last admission before visiting.
Kusatsu Nettaiken: official facility name and events Kusatsu Nettaiken: tourism association fees, hours and walk
Questions about Kusatsu Nettaiken
Can I walk to Kusatsu Nettaiken from the bus terminal?
The tourism association gives about 12 minutes on foot from Kusatsu Onsen Bus Terminal. Follow the tourism map and signs on site to the entrance.
Official sources
- Kusatsu Nettaiken: tourism association fees, hours and walk ·
- Official sources ·
- Kusatsu Nettaiken: official facility name and events ·
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