Ring 4 is one of Oslo's great cycling institutions — a classic loop through Nordmarka that local riders have been doing for generations. The name refers to the fourth ring of trails radiating out from the city, and it's the one that strikes the perfect balance between wild forest riding and manageable distance.
We start at Sognsvann lake, where the forest begins immediately — getting there by T-bane or meeting directly depending on your starting point. The route heads north through stands of pine and silver birch, following gravel forest roads that are smooth enough to roll at speed but varied enough to keep things interesting. Expect a couple of proper climbs — both well rewarded with long, flowing descents.
Halfway around you'll pass Kikutstua, a traditional Norwegian mountain cabin that serves waffles and coffee. We stop here for a well-earned break before looping back south through the Maridalen valley, one of the few agricultural landscapes left within Oslo's city limits, and finishing back at the lake.
