Outside of the groomed terrain is often where the best snow is to be had: the reason people travel from all over the world to Hokkaido.
However, enjoy powder snow generally comes with significantly increased risks compared to staying on the groomed slopes. These risks are no managed through public regulations in Japan, and there are no formal standards for managing these risks. The organisations responsible for the safety of powder seekers in Hokkaido take a variety of approaches to managing these risks, and generally are thorough, professional and considered in their methods.
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This page aims to educate powder seekers on important matters of etiquette and safety in the Otaru region, on the jargon and on other educational resources.
Hazards and risks
An inexhaustive list of examples of the freeride hazards and risks that can be encountered in the Otaru region.
Hazards
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Trees & vegetation
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Deep snow
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Complex terrain
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Unstable snow pack
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Extremely cold weather
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Creeks, holes and glide cracks
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Poor visibility
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Other mountain users
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Wildlife
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Cliffs
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Objects buried in snow (rocks & stumps)
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Tree wells
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Unstable snow bridges
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Flat light
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Man made structures such as lifts and fences
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Hidden ponds
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False sense of security - arising from tracks or many in people in an area with hazards
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Poor descision making arising from group dynamics
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Equipment failure
Risks
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Collision resulting in injury or exhaustion
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Entanglement resulting in injury or exhaustion
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Hypothermia and exhaustion
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Snow suffocation
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Navigational errors leading to exhaustion and hypothermia
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Avalanche burial and/or physical trauma
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Drowning
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Inability to move through terrain, resulting in exhaustion / hypothermia
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A visualisation of some of these hazards and risks, provided by the Hokkaido prefectural government, can be found here: https://tokyope.dfa.gov.ph/images/2025/skiing/rope.pdf
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Glossary of Terms
Guiding - leading people through terrain where routefinding and knowledge of the terrain is of importance. In the context of our ski & board school, we view any snowsports activities not taking place on the marked courses / pistes as 'Guiding'. The objectives of our Powder Guides are to keep you safe, find good snow, and help you learn new technical & tactical skills to improve yourself as a skiier, boarder & backcountry traveller.
Freeride - Snowboarding & skiing on ungroomed terrain, generally outside of the marked courses / pistes
Backcountry - backcountry should generally be regarded as natural and / or wilderness areas. These areas are not designated or administered as winter sports or winter leisure activities. In these areas no work has been done to prepare the terrain to protect travellers from the natural hazards. Avalanches, creeks, tree wells, extreme cold, extremely deep snow, poor visibility, cliffs and glide cracks are amongst the hazards which can be found in the Hokkaido backcountry. Casualties unable to move themselves from backcountry are very difficult to locate and rescue. Rescue may take tens of hours or days, and second order effects such as hypothermia pose significant risks of fatality compared with accidents that take place in controlled areas.
Side country - backcountry which is relatively easily accessible from a designated ski area, either by ski lift, hiking, climbing. Sidecountry is still backcountry - whilst promixty to a ski area might lead to slightly reduced rescue times, the same precautions should be taken as for any backcountry travel.
Lift-accessed - areas reachable by ski lifts only. Areas to which you need to hike, climb or skin are not lift accessed. These areas may be off piste / freeride areas within a ski resort, or backcountry areas not administered by a ski resort.
Snow submersion - the sheer quantity of snow in Hokkaido can be a hazard in and of itself. When fall in deep, soft and light snow, especially in terrain traps, it can be extremely hard to pick yourself up and climb out without proper technique. There have been instances of skiiers and snowboarders in Hokkaido getting stuck, becoming exhausted, and burying themselves in an attempt to get out of the snow.Useful links
Backcountry travel plan registration:
https://www.mt-compass.com/reportedit.php?new – Compass - an English-language backcountry travel plan registry. In the event of your party being reported missing or calling for help, the relevant authorities may use this to aid in your rescue.
https://www.police.pref.hokkaido.lg.jp/consult/yama-mail/tozan_mail.html - Hokkaido Prefectural Police Backcountry Travel Plan portal – In Hokkaido, there is no dedicated mountain rescue – the police and fire services, as well as resort ski patrol, are the only services equipped to handle rescues. It is strongly recommended that you register your backcountry travel plans with the police as far in advance as possible.
Weather:
https://www.snow-forecast.com/resorts/KiroroSnowWorld/6day/mid - Snowforecast.com - a good basic overview of the upcoming weather conditions
https://www.windy.com/ - Windy - more complex & detailed hour-by-hour weather reporting
https://supercweather.com/ - SCW - a very precise, accurate and detailed forecast model, paticularly useful for predicting cloud cover
https://powdersearch.jp/ - Powdersearch - a little harder to use, even with google translate, Powdersearch uses data from Japan’s network of automated weather and snowfall observation stations, and is a useful tool in predicting what weather and snow conditions you will encounter.
Avalanches:
https://nadare.jp/avalanche_informations/5645?locale=en – JAN Nadare Niseko Shiribeshi Avalanche Bulletin – a decent & generalised avalanche bulletin that covers much of the Otaru Area, but should be taken with a handful of salt: temperatures & snowfall amounts can vary hugely from locality to locality within the region. Avalanche bulletins should always be used in conjunction with localised, live observations in the mountains & in the snowpack as part of a continuous risk assessment.
Other information sources on the Backcountry in Hokkaido:
https://hokkaidowilds.org/hokkaido-ski-touring-etiquette - Hokkaido Wilds hosts a library of information on summer & winter outdoor activity route & itinerary planning. Linked here we have Hokkaido Wild’s important points on winter backcountry etiquette.
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https://hokkaidobc.info/ - Hokkaido Backountry Information - A very useful site hosting safety information & other general freeride information.
https://tokyope.dfa.gov.ph/images/2025/skiing/rope.pdf - ‘Beyond the rope’ - a document created by the Hokkaido prefectural government detailing some major Freeriding hazards common in Hokkaido.
Japan specific GPS beacon:
https://www.cocoheli.com/ - CocoHeli – a Japanese company manufacturing lightweight GPS tracking devices, with an emergency signal mode and with pre-programmable backcountry travel plans, all linked to an app. This is a great product and we recommend it to winter freeride & backcountry travellers in Japan.
What does a sidecountry rescue look like?:
https://youtu.be/pKz4LjCntSs?si=HRPq_wTzr3Z6pw3i - this video shows the pace of a rescue only 1.5km from the Mountain Centre at Kiroro. The comments and interview also shed light on a sentiment widely shared in Japan: non-Japanese tourists are often inadequately informed and innadequately prepared for freeride activities.
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Ski area management & control
Generally each ski area in Japan takes a different approach to controlling access to non-pisted terrain. Each resort will also have its' own specific hazards. The resources allocated to patrol staffing, equipment and training also vary widely, which may in turn lead ski area managers to restrict access to certain areas.
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Communication and enforcement of rules, regulations and the concepts and principles by which ski areas manage the risks is normally patchy. There is often ambiguity about whether access to an area is officially permitted or not permitted. If you think it's not an officially permitted area or backcountry access point, you shouldn't go there, because you do not know what hazards you will come across.
