This is a pleasant walk down the river where Oslo's industry developed before the days of electric power. A good mix of green parks and old industrial buildings that have now been restored and have new life as offices. A few places where you can get refreshments along the way and you are never too far from the bus route if you want to cut the walk short. Could be combined with a visit to the Technical Museum.
Easy to access, take the 54 bus from Nationaltheatre or Oslo S, direction Kjelsås, and get off at 2nd to last stop - Stillatorvet - about 30 min. Easiest is to start the walk here - just a few metres in same direction as bus travels on right side you'll find the path - the paths are mainly gravel, so use sensible shoes. Just follow paths along the river, note that below first waterfall you should cross over the roadbridge and follow the river on the other side. Passes below the new Mathallen - might be worth a stop there for lunch or refreshments.
If you want to do the whole walk, then after getting off the bus, cross the road and continue in the same direction as the bus until you find a path on the left. Again just follow the paths along the river, past the Technical Museum, until you reach Maridalsvann. Turn around and walk back.
The walk ends at Vaterlands bridge, nearest T-bane (Metro) is Grønland, but it's just a short walk to Oslo S station.
If you own or manage Akerselva River, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.