Grünerløkka, Mathallen Food Hall and the Akerselva River Walk

Running eight kilometres straight down from Lake Maridalsvannet in the northern forest to the fjord beside the Opera House, the Akerselva River was the cradle of Norway's 19th-century industrial revolution, powering red-brick cotton spinning mills, soap factories and breweries along itstwenty waterfalls. Today a continuous, car-free green footpath traces the riverbanks, cutting right alongside Grünerløkka (called simply Løkka by locals), Oslo's liveliest neighbourhood of independent coffee roasteries, vintage clothing shops, street art and park cafés.

Walking the Akerselva River from Nydalen or Torshov to Vulkan

For an easy downhill morning walk, ride Tram 11, 12 or 18 up to Biermanns gate (at the top of Grünerløkka) and walk south along the rushing water:

• Beierbrua and Hønse-Lovisas Hus: at the roaring Møllafossen waterfall, an 1800s red timber sawmill worker's cottage named after a character in novelist Oskar Braaten's factory stories perches directly on the cliff lip, serving freshly pressed Norwegian waffles and filter coffee overlooking the cascade.
• Kuba Park and Nedre Foss: cross the cast-iron suspension bridge at Aamodt bru (inscribed with the promise that "100 men can stand on me, unbreakable strength") past the former gasometer silo in Kuba Park down to Nedre Foss Gård, the oldest manor estate in Oslo beside the lower waterfall.
• Vulkan and Mathallen Oslo: right below the river terrace sits Vulkan, a former iron foundry complex now heated by 300-metre geothermal wells and home to Mathallen Oslo. Inside this brick food hall, more than thirty specialist counters serve Norwegian cheeses, cured meats, fresh oysters, pintxos and local craft beer.

Thorvald Meyers gate, Olaf Ryes plass and Tim Wendelboe

Cross the river bridge from Mathallen into the 19th-century grid of Grünerløkka. Follow Markveien and tree-lined Thorvald Meyers gate through three green public squares: Birkelunden (which hosts a lively Sunday vintage and vinyl flea market), fountain-centred Olaf Ryes plass and Schous plass (where Schouskjelleren Microbrewery pours craft ales in vaulted brick cellars). One block west of the river at Grüners gate 1 sits Tim Wendelboe, the tiny espresso bar and micro-roastery founded by the World Barista Champion that pioneered light-roast Nordic coffee culture, while across the lower river bridge at Hausmanns gate and Torggata lies the creative cultural courtyard of Blå / Ingensteds and Torggata Bad (Oslo Street Food).