Gliding for kilometres across a frozen Swedish lake is one of the best things a winter visit can offer. It is also the one winter activity where nobody checks the conditions for you. Here is how Swedes do it safely, and how you can join in.
When you need this
You’re in Sweden between November and March and the lakes have frozen. Maybe you’ve seen groups with backpacks and poles skating far out on the ice and want to try it. Or you’re choosing between a guided tour and a ploughed track, and you want to know how thick the ice must be and what to carry.
Three ways to skate natural ice
Swedes call it långfärdsskridsko, or long-distance skating. In English it’s Nordic or tour skating: long blades, lakes and sheltered sea bays, often tens of kilometres in a day. You can do it in three ways.
| Format | What it is | Who it suits |
|---|---|---|
| Ploughed lake track (plogad bana) | A loop the municipality or a local association clears once the ice holds | Anyone who can skate; the easiest start |
| Guided tour | A guide picks the ice and the route and usually supplies equipment | First-timers who want wild ice |
| Club skating | Member tours and shared ice reports through Skridskonätet, the clubs’ joint association | People staying a whole season |
Visit Stockholm recommends a guided tour if you’ve never been on natural ice, because guides know where the ice is thick enough. Skridskonätet says the same about club tours. What kit a tour includes varies by operator, so ask when you book.
How thick the ice must be
Issäkerhetsrådet, Sweden’s ice-safety council, says clear core ice (kärnis) should be at least 10 cm thick before you go on it. The council brings together the lifesaving society, the skating clubs, the outdoor association and the sea-rescue society, among others.
The City of Stockholm uses higher numbers for its own work. It drives light machines onto its lake tracks at about 15 cm of good core ice and heavier vehicles at 20 cm. Those are thresholds for machines, not for skaters. And the city publishes no thickness readings at all: it says conditions vary too much from place to place, and that all skating on its tracks is at your own risk.
Thickness isn’t the whole story. Snow-covered ice, spring ice and sea ice can all be weak even when they look thick. That’s why skaters carry a pole and use it.
The kit, and why each piece matters
Swedish skaters build their kit around three words: knowledge, equipment and company (kunskap, utrustning, sällskap, or “KUS”). Here’s what Issäkerhetsrådet and the clubs say to carry.
| Item | When | Why |
|---|---|---|
| Ice claws (isdubbar) | Always | To pull yourself out; wear them high round the neck, outside your jacket |
| Phone in a waterproof case | Always | To call 112; keep it reachable without taking the backpack off |
| Ice pole (ispik) | Off prepared tracks; at least one per group | To test the ice ahead; it should float and have some weight |
| Throw line (räddningslina) | Off prepared tracks; at least two per group, ideally one each | So others can pull you out; it floats and must be reachable from the water |
| Flotation backpack (flythjälp) | Off prepared tracks | Hip belt and crotch strap, with dry clothes in a roll-top dry bag; the dry bag keeps you afloat |
| Life jacket | Children, always | Children also need at least one adult with them on the ice |
| Helmet, knee pads, gloves | Recommended | Falling is the other big risk |
Two details catch newcomers out. The backpack’s crotch strap stops it riding up in the water and pushing your head forward. And the dry clothes go in a heavy roll-top dry bag, not thin plastic bags: that bag is also your flotation. Skridskonätet suggests a pack of around 30–40 litres, with room for a warm jacket for breaks, a thermos and food.
On the ice, skate in single file. Issäkerhetsrådet says to stay at least 10 m behind the skater in front, so two people can’t go through at once. Skridskonätet says never go out with fewer than three.
Test often. Use the pole whenever the ice changes colour, shape or sound, and strike hard. If water comes up, the ice is too weak, so turn back or take another way. Speed works against you, too: the faster you’re going, the further you slide onto weak ice before it breaks.
If someone does go through, the steps are in our guide to staying safe in the cold. Call 112.
Where the ice is weak
Issäkerhetsrådet lists the classic weak spots: reeds, cracks, jetties, bridges, points, sewage outlets, inlets and outlets, straits, shallows, and vindbrunnar, patches that stayed open after the rest of the lake froze. Wherever water moves, the ice is thinner.
- Snow hides weak spots and muffles the sound. It also insulates, so ice under drifts can be thinner.
- New black ice looks dark, and its weak spots are hard to see. Skate along the edge of a new-ice area to older ice rather than straight across it.
- Spring ice (våris) can lose its strength in 15–20 minutes as the sun climbs, starting near the shore. A route that held at 9 a.m. may have no safe way back at noon.
Stockholm and the archipelago
In a cold winter the City of Stockholm ploughs several lake tracks. Trekanten in Liljeholmen is closest to the center, and Drevviken, Magelungen and Långsjön lie further south. The city’s lake-track map shows what’s open. Hellasgården, about half an hour away, usually gets skateable ice at the end of January.
The archipelago and the bays of Lake Mälaren offer the famous long skates, but they’re for experienced groups and guided tours. Sea ice is always weaker than lake ice, says Issäkerhetsrådet. It gives no clear warning sound as it thins, and it’s harder to test with the pole. Wind, waves and boats can break it up so it drifts away. Ferries and other vessels also cut channels (isrännor) through it, sometimes at short notice. Skridskonätet keeps a public list of these ice-breaking notices, and they’re also announced on P4 radio.
Beyond Stockholm
Visit Sweden lists prepared natural-ice tracks across the country. The lengths below are from its 2025–26 page and change with each winter’s ice.
| Area | Prepared track or ice |
|---|---|
| Runn/Ösjön, Dalarna | Up to 50 km of tracks |
| Väsman, Ludvika | A 19 km track |
| Luleå | About 10 km, December to March/April |
| Tavelsjö near Umeå, and Piteå | Tracks with skate rental |
| Storsjön, Östersund | Groomed natural-ice tracks |
| Vänern and Glafsfjorden, Värmland | Wild ice only; no prepared track |
When to go
Nationally, the natural-ice season typically runs from mid-November to the end of March, depending on location. Visit Sweden says November is often the best period, because there is less snow on the ice. Around Stockholm the season usually starts from mid to late January, or sooner after a cold December. March and April bring spring ice, which is for experienced skaters only.
Mistakes to avoid
- Treating a ploughed track as a guarantee. The City of Stockholm reports no thickness and says you skate at your own risk.
- Testing the ice with a ski pole. It’s too light to tell you anything.
- Mixing up “ice picks”. In English the term often means ice claws (isdubbar). The Swedish ispik is the long testing pole. Off prepared tracks you need both.
- Clipping the throw line inside the pack. You must be able to reach it without taking the pack off, even in the water.
- Counting on Skridskonätet’s ice reports. Full access requires membership of an affiliated club.
Practical information
| What | Details |
|---|---|
| Minimum ice | 10 cm clear core ice (Issäkerhetsrådet) |
| Stockholm ploughing thresholds | About 15 cm (light machines), 20 cm (heavy vehicles) |
| Group size | Never alone; clubs say at least three |
| Spacing | At least 10 m behind the skater in front |
| Cost of skating a lake or ploughed track | No fee or permit stated (checked 2026-09-25) |
| Guided tours, rental | Prices set by each operator; not published here |
| Club access to ice reports | Membership of an affiliated club required |
| Emergency | 112, free, works without a SIM |
FAQ
How thick does ice need to be for skating in Sweden?
Issäkerhetsrådet, the Swedish ice-safety council, says clear core ice should be at least 10 cm thick before you go on it. The City of Stockholm drives light machines on its lake tracks at about 15 cm and heavier vehicles at 20 cm. Snow-covered, spring and sea ice can be weaker than the thickness suggests. Test with an ice pole.
What safety equipment do I need for Nordic skating?
Always ice claws round your neck and a phone packed waterproof. Off prepared tracks, add an ice pole to test the ice, a floating throw line, and a backpack with hip belt and crotch strap holding dry clothes in a dry bag, which also works as flotation. Children should wear a life jacket.
Can I skate on natural ice in Stockholm?
Yes, when winter is cold enough. The city ploughs several lake tracks once the ice holds, including Trekanten in Liljeholmen and, further south, Drevviken, Magelungen and Långsjön. It publishes no thickness readings and says skating is at your own risk. The season usually starts from mid to late January.
Is it safe to skate in the Stockholm archipelago?
Only with experience or a guide. Issäkerhetsrådet says sea ice is always weaker than lake ice, gives no clear warning sound and is harder to test. Wind, waves and boats can break it, and ferries cut channels through it at short notice. Check the ice-breaking notices before any archipelago trip.
What is Skridskonätet, and can visitors use it?
Skridskonätet is the joint association of Nordic skating clubs. It shares ice observations, trip reports and tour sign-ups — but full access requires membership of an affiliated club. Its list of ice-breaking and ship-channel notices is public. Staying a season? Its map helps you find a local club.
Can I rent Nordic skates or join a guided tour?
Yes. Guided tours on natural ice run around Stockholm and elsewhere, and guides know where the ice holds. Some prepared tracks and city rinks rent skates. Visit Stockholm recommends a guided tour if you are new to natural ice. Prices vary by operator.
Related guides
- Ice safety on frozen lakes: walking and fishing on the ice, the same weak spots
- Staying safe in the cold: what to do if someone falls through, and hypothermia first aid
- Sweden in winter: light, cold and what else the season offers
- Packing for a Swedish winter: layers that work for a day on the ice
- The Stockholm archipelago: the islands in every season
Facts verified 2026-09-25. Sources: Issäkerhetsrådet, Skridskonätet, the City of Stockholm, Visit Sweden, Visit Stockholm and SOS Alarm. The full register is in this topic’s source file. No current ice status is published here, so check the local track page or your guide on the day. Found something outdated? Tell us and we’ll fix it.