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This 230 km route runs from Totsuka-juku to Kusatsu Onsen, passing through Kanagawa, Gunma, Saitama, and Tokyo. In the past 30 days, 52 bear sightings were reported within 5 km of the route. The past 7 days account for 8 of them. The latest sighting was reported 12 hours ago near Tsumagoi, Gunma.
This is an active bear corridor. Drive through with full caution, but rerouting is the safer choice.
8 places within 1 km of your route, passing through Kanagawa, Gunma, Saitama, Tokyo.
Tsumagoi, Gunma
Shibukawa 横堀, Gunma
Around 9:00 on June 14, a bear-like animal was sighted in Oguno, Hinode-machi, Tokyo.
Tokyo Oguno, Tokyo
Shibukawa 横堀, Gunma
Higashiagatsuma Matsuya, Gunma
Tsumagoi Imai, Gunma
Higashiagatsuma Gochoda, Gunma
Tsumagoi, Gunma
Shibukawa 横堀, Gunma
Hachioji, Tokyo
A bear was sighted in Otsu, Naganohara Town, Gunma Prefecture.
Naganohara Haneo, Gunma
Atsugi Tanazawa, Kanagawa
Nakanojō Namasu, Gunma
Higashiagatsuma Atsuda, Gunma
Higashiagatsuma Yagura, Gunma
A bear was sighted in Yagura, Higashiagatsuma Town, Gunma Prefecture, around 8:50 PM on June 4.
Higashiagatsuma Yagura, Gunma
While descending the Inariyama course, I witnessed a black shape moving down the slope ahead. It was some distance away, so I cannot be certain.
Hachioji, Tokyo
Around 8:00 PM on June 3, there was a report of a sighting of an animal believed to be a bear near 400 Chigasase 4-chome, Ome City.
Ōme Chigasemachi, Tokyo
Shibukawa 小野子, Gunma
Naganohara Hayashi, Gunma
Around 10:50 on 2026-06-03, a bear was sighted in Ogashiwagi, Higashiagatsuma Town, Gunma Prefecture.
Higashiagatsuma Okashiwagi, Gunma
Higashiagatsuma Matsuya, Gunma
Naganohara, Gunma
At approximately 2:45 p.m. on May 31, a bear-like animal was sighted near Nagafuchi 5-chome, Ome City, Tokyo (landmark: Meisei University entrance intersection).
Ōme Nagabuchi, Tokyo
Early on 2026-05-31, a bear-like animal was sighted in Moto-Hachioji-cho 3-chome, Hachioji City.
Hachioji, Tokyo
At approximately 5:10 a.m. on May 31, 2026, near the Otstuden Falls area within Hachioji Castle Ruins in Motohachiōji 3-chome, Hachioji City, there was a report of a bear growling. Since a bear was also sighted at the same location yesterday, please refrain from going out in the vicinity, and if you see a bear, call 110 from a safe location.
Hachioji, Tokyo
There was one Asiatic black bear (Tsukinowaguma) on the stairs descending from the rest/interaction area toward the Takao direction. It appeared to be large in size.
Hachioji, Tokyo
While descending the Inariyama course during trail running, I heard a loud rustling as if an animal was pushing through the bushes on my front left. When I looked toward the sound, I saw what appeared to be a black animal—likely a bear—running away quickly within about 50 meters. Although I was wearing sunglasses, it looked about 1–1.5 meters long, so I believe it was a bear. I had been running downhill with bear bells, so I think it noticed human presence and hurriedly fled. I didn’t have time to stop and take a photo, and the location is approximate. I was measuring distance by GPS as I ran, and it was just past 2 km from the summit, but I roughly identified the spot by comparing with someone’s recorded track on YAMAP. There may still be some margin of error. I posted this because there was a sighting reported yesterday at Yakoin.
Hachioji, Tokyo
Hachioji, Tokyo
At approximately 12:10 p.m. on May 30, 2026, a bear was sighted near the Goshuden Falls in the Hachioji Castle ruins area, Moto-Hachioji-cho 3-chome, Hachioji City.
Hachioji, Tokyo
Aikawa Hanbara, Kanagawa
Naganohara Hayashi, Gunma
Around 09:00 on 2026-05-28, a bear was sighted in Odo, Higashiagatsuma Town, Gunma Prefecture.
Higashiagatsuma Odo, Gunma
Around 18:30 on 2026-05-27, a bear was sighted in Yokobori, Shibukawa City, Gunma Prefecture.
Shibukawa 横堀, Gunma
Shibukawa 横堀, Gunma
Nakanojō Iriyama, Gunma
Shibukawa 伊香保町湯中子, Gunma
Nakanojō Oshi, Gunma
Kusatsu, Gunma
Akiruno Sannai, Tokyo
Around 12:30 on 2026-05-24, an animal believed to be a bear was sighted in Yokozawa, Akiruno City.
Akiruno Yokosawa, Tokyo
Shibukawa 横堀, Gunma
At approximately 6:00 PM on May 22, 2026 (Reiwa 8), there was a sighting of an animal believed to be a bear in the river near Matsueda Bridge in Narahara-machi, Hachioji City.
Hachioji Yotsuyamachi, Tokyo
Around 6:00 PM on 2026-05-22, an animal believed to be a bear was sighted in Naranohara-cho, Hachioji City, Tokyo.
Hachioji, Tokyo
At around 3:50 PM on May 20, a bear was sighted in Iwashita, Higashiagatsuma Town, Gunma Prefecture.
Higashiagatsuma Iwashita, Gunma
Shibukawa 川島, Gunma
Shibukawa 北橘町分郷八崎, Gunma
Hachioji, Tokyo
In Hachioji (Shimoonkata-cho), Tokyo, what appears to be a parent and cub of an Asian black bear were photographed on 2026-05-17 at 18:35. There are no reports of injuries or damage.
Hachioji, Tokyo
In Hachioji (Kamiongatamachi), Tokyo, a sensor camera installed by a resident captured two Asian black bears (believed to be a mother and cub) at around 18:35 on May 17. The city set box traps near the site and warned that mother bears can become aggressive when protecting their cubs.
Hachioji, Tokyo
Nakanojō Arigawa, Gunma
At approximately 5:30 a.m. on May 17, there was a report of an animal believed to be a bear in the vicinity of 825, Kabecho 1-chome, Ome City.
Ōme Kabemachi, Tokyo
Peak activity at 18:00 with 8 incidents
Ursus thibetanus japonicus
Safety picks and trail essentials, top-rated on Amazon and Rakuten.
For mountain rescue, call 110 (police). They will coordinate with local rescue teams.
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In the past 30 days, 52 bear sightings were reported within 5 km of the route. The past 7 days account for 8 of them.
The latest sighting was reported 12 hours ago near Tsumagoi, Gunma.
Recent sightings on this route peak around 18:00. Bears are generally most active at dawn and dusk.
This 230 km route runs from Totsuka-juku to Kusatsu Onsen, passing through Kanagawa, Gunma, Saitama, and Tokyo. In the past 30 days, 52 bear sightings were reported within 5 km of the route. The past 7 days account for 8 of them. The latest sighting was reported 12 hours ago near Tsumagoi, Gunma. This is an active bear corridor. Drive through with full caution, but rerouting is the safer choice.
