Sognsvann is the last stop on metro line 5, about 20 minutes from central Oslo. Step off the train and you are standing at the edge of the Nordmarka forest — 1,700 square kilometres of trails and gravel roads that most tourists never reach. The lake is right there. The gravel roads start immediately. Getting here is straightforward; most visitors just don't know to try.
The metro is the easiest option. Take line 5 (the green line) from any central station — Nationaltheatret, Stortinget, Jernbanetorget (Oslo S) — in the direction of Sognsvann. Line 5 runs in both directions, and the wrong direction takes you away from the forest entirely. Check the destination display at the front of the train or on the platform screen before boarding. Sognsvann is the final stop, so you cannot overshoot it. The journey from Nationaltheatret takes about 20 minutes.
Tickets are standard Ruter fare, covered by any valid Oslo transit pass. The metro runs frequently during the day, with departures roughly every 15 minutes. Check the Ruter app for live times — departures from the city in the morning and back in the evening are reliable, but the last train can be earlier than you expect on weekdays.
One practical note: the line passes through Majorstuen, where lines 3 and 6 also stop. If you board any of those at a shared station, make sure you are on line 5. The sign at the front of the train will say Sognsvann.
Cycling from the city centre takes 30–45 minutes depending on where you start and how hard you push. The most direct route heads north from Grünerløkka, past Nydalen and over Nordberg before dropping into Sognsvann. It is mostly uphill — Oslo climbs from sea level to about 170 metres at Sognsvann — so plan your legs accordingly.
None of the road routes are particularly technical; the challenge is simply the steady ascent.
If you are renting a gravel bike and the climb doesn't appeal, the metro makes far more sense. Collect the bike at Sognsvann, ride the forest, and take the metro back. No wasted legs before the good part starts. Oslo Bike Tours offers gravel bike rental with pickup at Sognsvann for exactly this reason.
Sognsvann lake sits at the forest edge. There is a 3.3 km walking loop around the lake — flat, paved, and popular with families and runners. In summer, the lake is a swimming spot; Norwegians are matter-of-fact about outdoor swimming and the water is cold but clean.
Beyond the lake loop, gravel roads push north into the Nordmarka forest. These are the roads worth coming for. The main route, Ring 4, is a 45 km loop that takes in forest ridgelines, remote lakes and mountain cabins serving coffee and waffles. Shorter options branch off in every direction — you can turn back at any point without retracing the same ground.
The trails are unmarked for visitors. There are no signposts directing you toward the best routes, and the forest is large enough to get genuinely lost in. Bring offline maps (Maps.me and AllTrails both have Nordmarka forest coverage), tell someone your plan, and be conservative with daylight. The forest rewards preparation.
If you would rather not navigate yourself, our Nordmarka Forest guided tour starts at Sognsvann and follows the Ring 4 route with a local guide who knows every turn. Hotel pickup included — the metro ride is part of the experience.
Prefer to go on foot? Sognsvann is also a great starting point for the hike up to Vettakollen — one of the best viewpoints above Oslo. Our sister company Oslo Hiking Tours runs guided hikes to Vettakollen if you'd rather have a local show you the way.
Rent a gravel bike with pickup at Sognsvann and explore at your own pace — or join a guided tour and let a local show you the best of the forest.
Gravel Bike Rental Nordmarka Guided TourMetro line 5 (the green line) runs directly to Sognsvann. It is the last stop on the line. The journey from Nationaltheatret in central Oslo takes around 20 minutes.
About 12 km by road, or 20 minutes on metro line 5 from Nationaltheatret. You can also cycle from the city centre in roughly 30–45 minutes, heading north from Grünerløkka past Nydalen and over Nordberg.
Bikes are allowed on the Oslo metro outside rush hours (before 07:00, between 09:00 and 15:00, and after 17:00 on weekdays, and all day on weekends). A separate bike ticket is required. Check Ruter's current rules before travel.
Sognsvann is a lake on the edge of the Nordmarka forest. You can walk the 3.3 km loop around the lake, swim in summer, or continue on foot or by gravel bike deep into the forest — to lakes, ridgelines and mountain cabins. It is the main access point for Nordmarka forest cycling and hiking.
Yes. Oslo Bike Tours offers gravel bike rental with pickup directly at Sognsvann. You take the metro out, collect the bike at the station, and the forest gravel roads start immediately. No riding through city traffic.