In winter Finland, a hole cut in the ice is the start of one of its most beloved rituals: avanto, the winter swimming hole. Paired with the sauna, it makes a cycle of extreme heat and bracing cold that Finns swear by for wellbeing.
Combine a hot sauna with a cold plunge and you have a feeling of aliveness that is hard to describe — and easy to fall in love with.
The winter tradition
Avanto is the Finnish word for the opening cut in lake or sea ice for winter swimming. Around every Finnish city you will find avanto spots with a changing hut and often a sauna right beside them. What began as practical bathhouse culture has become a beloved act of shared winter wellbeing.
The sauna–avanto rhythm
The magic is in the cycle: heat yourself thoroughly in the sauna, then step out into the cold and slip into the ice water for a short, sharp plunge, then return to the sauna to warm up again. Repeating the cycle is intensely refreshing — the cold electrifies the skin, and the return to heat feels like the best hug of the day.
Health and the cold plunge
Advocates link regular winter swimming with a brighter mood, better circulation and a feeling of resilience. The cold is a strong stimulus that wakes up the body and mind, and the sauna immediately afterward restores warmth and comfort. Many people report sleeping better and feeling calmer on the days they plunge.
Safety first
- Never swim alone — always have another person nearby or a supervised avanto.
- Start slowly: a few seconds in the water is enough the first time.
- Warm up thoroughly in the sauna first; never enter cold water chilled.
- Dry completely and dress warmly right after the plunge.
- Avoid alcohol — it dulls your response to the cold. Check with a doctor if you have a heart condition.
Frequently asked questions
Is an avanto safe for beginners?
It can be, with care: use a supervised or shared avanto, stay in for only a few seconds, warm up first in the sauna, and dry off quickly afterward. Never do it alone.
How long should I stay in the cold water?
For most people a short plunge of 10–30 seconds is more than enough — even a few seconds builds the effect. The goal is the contrast, not a long swim.
Do I need the sauna for avanto?
You do not, but the two are a natural pair. The sauna warms you and makes the cold plunge feel glorious, and the plunge makes the sauna feel even better. Together they form the classic Finnish winter ritual.
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