Bears near Karuizawa
Karuizawa (Nagano) is a highland resort town drawing about 8 million visitors a year. The whole town lies within Asian black bear range, and bears are seen even in residential areas.
21 bear sightings within 10 km in the past 90 days
Most recent: Aug 12, 2026
Bears are present in this area. Take basic precautions when hiking — especially at dawn and dusk.
Real-time data from official reports and news, updated continuously.
Bear sightings map
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Recent sightings within 10 km
- Aug 12, 20262.1 km away
- Aug 12, 20263.5 km away
- Aug 3, 20269.7 km away
- Jul 27, 20265.4 km away
- Jul 21, 20265.5 km away
- Jul 16, 20269.7 km away
- Jul 15, 20268.8 km away
- Jul 14, 20269.4 km away
Getting there
Get directions on Google Maps →When are bears most active?
Bears are most active in autumn (September–November) and late spring, and around dawn and dusk. Poor acorn years push bears closer to trails.
Sightings by month within 10 km (peak: Jul)
Based on 111 reported sightings within 10 km (all years).
Best seasons to visit
Each season has its own appeal. Bears live here year-round, so carry a bell and stay aware — especially in autumn.
Spring · Apr–May
Fresh green & blossoms
New foliage and comfortable weather — one of the easiest times to hike.
Summer · Jul–Aug
Cool valleys & forest
Shaded trails and streams offer relief from the heat. Bring sun protection and water.
Autumn · Oct–Nov
Autumn colors
The most scenic season, with brilliant fall foliage. Bears are also most active — carry a bell.
Winter · Dec–Feb
Clear, quiet views
Crisp air and long views; quiet trails (some routes close due to snow).
Hike safely
- • Make noise (a bear bell, talking) to avoid surprise encounters.
- • Don't hike alone; avoid dense brush and dawn/dusk if you can.
- • If you meet a bear: stay calm, don't run, back away slowly.
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日本語版: 軽井沢周辺のクマ出没情報