Avantouinti (Ice Swimming)
The Finnish tradition of swimming in a hole cut in winter ice, often combined with sauna, for health and wellness.
Ice swimming — the Finnish practice of swimming in a hole cut in frozen lake or sea ice, typically paired with sauna.
What it means
Avantouinti is the Finnish tradition of winter swimming through a hole (avanto) cut in the ice of a frozen lake or sea. The water temperature is typically 0-4 degrees Celsius. The practice is usually combined with sauna — swimmers alternate between the hot sauna and the icy water. Once a niche activity, ice swimming has surged in popularity and now attracts over 700,000 regular practitioners in Finland. Public avanto spots are maintained throughout winter at beaches, swimming halls, and sauna facilities across the country. Swimmers typically immerse themselves briefly (10 seconds to a few minutes) rather than swimming lengths.
Why it matters for internationals
Ice swimming is one of Finland's most distinctive cultural experiences and increasingly popular among internationals. Many find it transformative — the endorphin rush and sense of accomplishment are powerful. Public ice swimming spots are free or inexpensive, and many have heated changing rooms and saunas. Beginners should start slowly (just a brief dip), avoid going alone, and be aware that the cold shock response can be dangerous for those with heart conditions. Ice swimming clubs and groups provide a social community that warmly welcomes newcomers.
Key details
- •Season: December through March when ice is thick enough (at least 10-15 cm for safety)
- •Temperature: Water is typically 0-4°C; ice must be maintained and kept open by regular use or pumps
- •Health benefits: Reported benefits include improved circulation, mood boost, stress relief, and cold tolerance
- •Safety: Never swim alone; start with brief dips; consult a doctor if you have heart conditions
- •Where to try: Public beaches with maintained avanto, swimming halls, and sauna complexes; many are free
Related terms
- •Uimaranta — beaches where avanto holes are often maintained
- •Kansallispuisto — some national parks have winter swimming spots
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