Tour skating
Ice safety
Ice safety is the core skill in tour skating. How to read ice — clear black ice vs snow ice vs melting ice — where current-exposed areas are dangerous, and why 'there is no safe ice, only safe skaters'.
Ice safety is the one core skill in tour skating. More than equipment, more than technique, more than physical fitness — it is your ability to read ice that decides whether you can tour-skate safely or not. Foreningen Turskøyting’s classic slogan — ‘there is no safe ice, only safe skaters’ — is not rhetoric but practical philosophy. Even on 15 cm of ice you can go through if you are over a current-exposed zone, if you are over weakened layered ice, or if local warmth has reduced the thickness.
For anyone new to tour skating, ice reading is the skill that must be built first. You can have the best equipment and be in top form, but if you go alone over unsafe ice without reading it correctly, you are in danger. On the other hand, ice reading is learnable — through courses, local experience, and the use of public warning services such as Varsom.no/iskart.no.
Three central questions before you go onto ice
Before you set out on a tour-skating trip, consider:
1. How thick is the ice? Use the isstav to check. Clear black ice under 5 cm: do not go. 5–7 cm: carefully, one person. 10+ cm: safe for groups. Current-exposed areas require extra thickness.
2. What type of ice is it? Clear black ice is strongest. Snow ice, layered ice, or melting ice often requires twice as much for the same bearing capacity.
3. Is it current-exposed? Inlets, outlets, straits between lakes, areas below regulated watercourses (hydropower plants) — all of these can have thin ice even when surrounding areas are solid.
If the answer to any of these is negative, do not go. That is not conservatism — it is respect for how ice actually behaves.
Ice thickness and bearing capacity — concrete figures
Classic guidelines from NVE’s Isskole:
Clear black ice (core ice) — strongest, clear/dark, freezes without admixed snow:
| Thickness | Usable for |
|---|---|
| 5 cm | One adult, carefully |
| 7 cm | Safe for one person |
| 10 cm | Safe for skating groups |
| 15 cm | Requirement for ploughed skating tracks; heavier groups |
| 20+ cm | Safe for vehicles (snowmobile) |
| 30+ cm | Heavier vehicles |
For other types of ice you have to recalculate:
Snow ice/slush ice — frozen slush or snow that has mixed with water. Half the bearing capacity of clear black ice. 10 cm snow ice = 5 cm black-ice equivalent.
Layered ice — several layers of ice with water or snow between them. Only the strongest layer counts. Do not add the layers together.
Melting ice (spring melt) — porous, whitish, often with a film of water. Has no bearing capacity, must not be counted on.
Current-affected ice (strømis) — affected by an undercurrent. May appear thick but be weak; the bearing capacity can be dramatically reduced.
For anyone new: learn to distinguish the ice types visually. Clear black ice looks almost black or dark green, and you can see through it to the water below. Snow ice is white or greyish. Melting ice is wet, porous, and ‘matt’.
Current-exposed areas
Current beneath the ice is one of the greatest risk factors. Classic areas to avoid:
Inlets and outlets of lakes — the water moves constantly, and the ice is usually thinner here even if the rest of the lake is solid. On Mjøsa, the inlet from Gudbrandsdalslågen (in the north) and the outlet at Vorma/Minnesund (in the south) are known for unstable ice.
Straits between lakes — the water runs through, often with a higher current speed than the open expanses.
Areas below regulated watercourses — hydropower plants release and take in water. Regulation can change the water level and current pattern within hours.
Streams and rivers flowing into fjords — even if the sea is ice-covered, the river outlet may be open or have thin ice.
Areas with warm springs — rarer in Norway, but they can occur. Local knowledge is critical.
For anyone planning: ask locals or check Foreningen Turskøyting’s reports for the area. Current-exposed areas can have thin ice even 100 metres from an area with 20 cm bearing capacity. It is not uniform.
The isstav — the most important tool
The isstav is the most important safety equipment for tour skating. It is stronger than a ski pole, with a steel spike that can ‘poke’ a hole in the ice to read the thickness.
How to use it:
- Strike the ice hard with the staff in front of you — one or two hard blows.
- If the ice does not crack, you can normally go on.
- If the staff goes through, note which type of ice you are on and how thick it was.
- Check regularly — every 50–100 metres on unfamiliar ice, more often in marginal areas.
For practical use: learn the sound. Clear black ice gives a high, ringing sound when you strike it. Snow ice or melting ice gives a dull, hollow sound. Sound alone is not reliable as a decision, but it is one of the indicators.
Price new: 600–1,200 kr. Classic manufacturer: Lundhags. Home-made versions (a chisel + broom handle) work too.
Varsom.no and iskart.no
NVE’s Varsom system is the official Norwegian source for ice warnings. Three relevant services:
Varsom.no/Isvarsling — regional ice warnings when NVE has observers or automatic monitoring. Not a round-the-clock watch, but it gives an up-to-date overview for the largest areas.
iskart.no — a map with official observations of ice thickness from all over Norway. Check it for your area before a trip.
RegObs — a reporting platform where observers from both the public sector and private individuals (tour skaters, anglers) can report ice conditions.
In addition, Skridskonätet (skridsko.net) is the Nordic platform for tour-skating reports. Users from all over the Nordic region contribute concrete observations.
For anyone planning: combine several sources. NVE’s official figures, local Facebook-group reports, and your own check with the isstav in the field. No single source is fully reliable.
Local Facebook groups
The Norwegian tour-skating community coordinates to a large extent through Facebook groups:
Turskøyting på Østlandet (FB group) — the largest national group, with ice reports and trip coordination.
Stålisgruppa Trøndelag — over 7,000 followers, with documented reports for lakes in Trøndelag.
Stålis - Israpportside Nordland — for conditions in northern Norway.
DNT Vansjø Turskøytegruppe — Østfold focus.
Smaalenene Tynn Is & Tur Skøytegruppe — Østfold/Innlandet.
Turskøyter Hole og Ringerike — Tyrifjord areas.
For anyone who wants to plan: become a member of a local group and read the reports. Active tour skaters share ice reports daily during the season, often with photos and bearing-capacity figures.
Climate change and ice conditions
Climate change has altered Norwegian tour-skating ice conditions in several ways:
A shorter ice-cover period — particularly in the lowlands. Mjøsa has historically frozen consistently from January; in mild years it is now not guaranteed before February.
More unstable — repeated freeze-thaw periods give more layered ice and more frequent weak areas.
Earlier spring melt — the season is cut short at both ends.
More mild-weather windows — short warm periods in January–February can ruin established good ice.
For anyone planning: local knowledge is even more important now than 20 years ago. Active tour-skating communities document the changes continuously.
When you are going alone — or not
Foreningen Turskøyting advises against going alone on natural ice. It is an explicit recommendation, not merely good practice.
If you do it anyway:
- Choose a safe area with known good ice and little current exposure
- Stay near land
- Tell someone where you are going and when you are expected back
- Phone in a waterproof bag
- Complete equipment — everything as described, no compromise
For most tour skaters, the rule is that longer trips or unsafe ice require company. Short trips on well-iced areas you know can be done alone with an appropriate margin.
For anyone new: do not go alone. Even experienced tour skaters mostly go with company.
Checklist before every trip
For systematic ice reading before every trip:
- Weather forecast checked (yr.no, local wind and temperature history)
- Ice report for the area checked (Varsom, local Facebook group)
- Recommended routes from the local group read
- Isstav, ice claws, throw line, waterproof change of clothes with you
- Company arranged or informed about a solo trip
- Phone with battery and in a waterproof bag
- Snutid considered, based on daylight and trip length
- Return alternative ready if the ice is marginal
It takes 5 minutes to go through, and prevents 90 per cent of beginner mistakes.
Next steps
If ice safety is new to you: take a theory course through Foreningen Turskøyting or DNT Oslo. One evening or weekend gives a solid foundation.
If you have a basis and want to build practical skills: join a plumpekveld to practise breaking through and self-rescue under controlled conditions. Self-rescue and partner rescue goes through the procedures.
For better local knowledge: become active in a local Facebook group. You learn more from reading ice reports daily through one season than from several books.
For equipment that matches your knowledge: tour-skating equipment goes through the practical side.
Learn more
- Varsom — Isvarsling og Isskolen
- iskart.no
- Foreningen Turskøyting
- Foreningen Turskøyting — «Det finnes ikke sikker is» (“There is no such thing as safe ice”)
- SNL: turskøyting
Text: Snuitide (2026).