Maridalen Loop

The light softens the moment the suburbs fall away. Water on one side, forest on the other, and a road that seems to have been poured for early mornings and quiet evenings. Maridalen is Oslo’s training garden — short enough for a recovery spin, familiar enough that locals stack laps without thinking twice.

Along Maridalsvannet

The loop begins at the southern tip of Maridalsvannet, the lake that supplies drinking water to most of the city. Head north on the western shore and the asphalt stays close to the water, with open views across to forested hills. Around three kilometres in, the old industrial buildings at Hammeren sit quietly by the river — a reminder that this valley once worked harder than it looks today.

Near the four-kilometre mark, the low stone walls of Margaretakirken appear in a clearing: a medieval church from the 1200s, reduced to ruins in a meadow. Half a kilometre further stands the wooden Maridalen kirke from 1900. Neither demands a long stop; both set the tone of a landscape that has been carefully left alone.

Maridalsvannet is a drinking-water source. No swimming, no fishing, and no lingering within fifty metres of the shore — the rules are enforced.

Northern turn and the eastern shore

The head of the lake is the quietest stretch: fewer people, wider farmland, deeper forest. Cross to the eastern shore and the road climbs onto a higher line. This side is more demanding than the west — rolling rises that gain and lose height — but the reward is the long view south along the full length of the lake on a clear day.

Past Skar, Sandermosveien tilts up for about a kilometre at just under seven per cent (steeper moments near eight). The high point sits around 236 metres. After that the road levels, and Greveveien carries you south toward the start.

Why riders come back

At twenty kilometres and 270 metres of climbing, this is not an epic — and that is the point. Many riders do two or three laps; sixty kilometres of nearly car-free asphalt is hard to find so close to a capital. Combine it with Grefsenkollen when the legs want more, or keep it pure when they do not.

There is no café on the loop itself. Fill bottles before you leave; Grains Frysja on Frysjaveien sits a few hundred metres from the usual start and finish. Kjelsås tram and the Gjøvik-line train make the valley easy without a car. Share the road kindly — this is also Oslo’s roller-ski highway — and leave the shoreline alone. The valley looks different in every light; that is why the lap never quite goes stale.