Nakukymppi

thumb|right|A man and a woman, both wearing only body paint, at the Nakukymppi event. Most participants attend the event fully naked, or wearing only a top. Nakukymppi is a nude sport event in Finland, held in the municipality of Padasjoki one week before Midsummer every year.

Participants run or walk either 10 kilometres or a full marathon naked. Participants tend to wear only shoes, socks and headwear. Women wear a top if their breasts are shaking too much. It has been held annually since 2003. It usually draws about 100 to 150 participants, of which one-tenth to one-fifth are women. Even though the event isn't organised by naturists and not only for naturists, half of the participants are naturists.