Backcountry safety in Japan

Avalanche information

Avalanche bulletins in Japan cover only some areas and are not as comprehensive as in North America or Europe. The Japan Avalanche Network (JAN) publishes bulletins for several popular regions, some in English, and certain areas publish their own local information. Where there is no bulletin, local guides' daily observations are often the best information available.

Resort boundaries and gates

Many Japanese resorts forbid skiing beyond the ropes. Some — Niseko is the best-known example — allow access to the backcountry only through designated gates, which patrol open or close depending on conditions. Ducking ropes can get your lift pass confiscated, and it puts rescuers at risk. Always follow the local rules for the resort you're at.

Submit a climbing plan (tozan-todoke)

In Japan you are expected to file a climbing plan (登山届, tozan-todoke) before going into the mountains. Some prefectures require it by ordinance for specific mountains in winter. Plans can be submitted online through services such as Compass, or at trailhead boxes. When you ski with a guide, the guide normally handles this.

Emergencies

• 110 — police (mountain rescue is usually coordinated by the prefectural police)
• 119 — fire and ambulance

Rescues can involve private search teams and long evacuation times. Search costs may be charged to the person rescued, so check your insurance.

Insurance

Many travel insurance policies exclude off-piste skiing or ski touring, or limit search-and-rescue cover. Before you fly, read the policy wording and confirm it covers backcountry skiing, helicopter evacuation and search costs.

Japan-specific hazards

• Tree wells and snow immersion — very deep snow around trees and in gullies. Ski in sight of your partner.
• Open creeks — streams hide under fresh snow, especially in early season.
• Whiteouts — common on treeless volcanoes like Asahidake, Hakkoda and Zao. Navigation skills are essential.
• Rapid storm loading — heavy snowfall can build unstable slabs within hours.
• Glide cracks — in spring, full-depth glide avalanches are common on smooth slopes.

This page is general information, not training. Take an avalanche course and carry beacon, probe and shovel.