OK Ravinen is a Swedish orienteering club in Nacka founded in 1950. Its house is located in Nackareservatet near Källtorpssjön.[1]
It has won the Tiomila relay in 1977, 1979, 1981 and the women's relay in 1979, 1980 and 1981. [2][3] Its team came third in Tiomila in 1958.[4]
The club won the Swedish championships in relay in 1978, 1979 and 1980.[5]
Björn Rosendahl, Gustav Bergman, Helena Bergman, Annichen Kringstad and Ruslan Glebov have run for the club.