Bring your bike on the Skiforeningen bicycle bus to Ringkollen and roll through the forest back to the city. Ringkollen is located in Krokskogen in the northwestern part of the Nordmarka forest.
Pre-registration required at skiforeningen.no before 2 pm the day before departure. Discount for Skiforeningen's members. Departure from Frognerparken, at Lysaker station and in Sandvika.