Oslo/North

• Coming in to Oslo from the north (for instance along the E6) by car, you will first end up here. As opposed to central parts of the city, it may be a good idea to get around by car. Nevertheless, a network buses and subways means you can get in to most places of interest with public transportation too.
• To get to northwestern Oslo, take subway 1 or 2. The former brings you to Holmenkollen.
• To get due north, take subway 5 to Songsvann, tram 11 or 12 to Kjelsås (or local trains even further in that direction).
• Northeastern suburbs, all the way to Vestli district at the city border, are served by subway lines 4 and 5. A little further south goes a local train line, and still further south, subway 2 serves suburbs like Furuset.

• 🌍 Holmenkollen (T-bane 1 towards Frognerseteren.). The ski jump located on the west side of Oslo, which was rebuilt for the World Ski Championships in 2011. It first opened in 1892 and has been re-built many times since then. It had more than 1 million visitors every year, and was one of the biggest tourist attractions in Norway. There is also the oldest ski museum in the world, opened in 1923. Walking and mountain bike riding are popular activities here during the summer. 
• 🌍 Holmenkollen Chapel (Next to the Holmenkollen ski jump). built with inspiration from the stave churches and benefits from dragestil wood carvings. The chapel used by the Royal Family at Christmas time and Holmenkollen ski festival. 
• 🌍 Emanuel Vigeland Museum (T-bane line 1 to Slemdal). Only open a few hours every Sunday afternoon. Among Oslos best hidden secrets. Gustav Vigeland's not so well-known younger brother erected the building as a museum for his art in 1926, but later decided it should serve as a mausoleum, with his urn placed above the door. The main attraction in this museum with no windows is the 800 square meters fresco "Vita", (Italian for "life"), showing the human life from conception till death, but other examples of his art are also on display. Included in the Oslo Pass. 90kr/adult 60kr/student children free. 
• 🌍 Norwegian Museum of Science and Technology & The Norwegian Telecommunications Museum, Kjelsåsveien 143 (Tram 11 or 12 to Kjelsås, bus 22, 25 or 54 or infrequent local train to Kjelsås stasjon). A fun and very interactive place for both children and adults. Contrary to information in the common tourist brochures this building. 90kr/adult. 
• 🌍 Nordmarka (Oslo forest) (Marka), North of Oslo + eastern (Lillomarka), northern and western suburbs (Metro, tram, car, bicycle, walking). 24 hours. Oslo is surrounded by wide and partly dense forests, generally known as Marka, of which Nordmarka is the largest and most accessible section (in addition to Nordmarka there similar areas east, south and west of the city). There are lots of roads and trails criss-crossing these wide forests, but no cars, only skiers, hikers and bicycles. So it is essentially the largest park in town. There are countless lakes, many rivers and small waterfalls too. Small summits that rise above the city offers excellent panoramas. Entry points everywhere, usually 10-15 min from the centre. Access by bus, metro, tram, car or bicycle. There is a fine network of high quality foot paths (roads) suitable even for wheelchairs and baby strollers, as well as many "nature trails" for hikers and skiers only. Roads closest to the city have street lights. In winter used for cross-country skiing, also a small ski resort (alpine skiing). The Moose (elg), mainland Norway's largest animal, roam the forest and occasionally strolls into town. Note: the Oslo forest is drinking water supply for 1 million people. Restrictions on camping, barbecue and swimming. Free. 
• 🌍 Sognsvann (Metro line (T-bane) 5 Sognsvann). 24 hours. Sognsvann lake is one of the most popular places in Marka (Oslo forest), nice meadows and easy path around lake, paths continue through the forest - metro line 5 to Sognsvann station. Surprisingly this lake is the geographical mid point of Oslo. free. (updated Sep 2016)
• 🌍 Stovnertårnet (Norway's longest tower), Karl Fossums vei 30 (Metro line 4 and 5 to Stovner). A 265 meter long circular walkway leads to the top of the tower, designed in such a way for universal accessibility. Great views of the Oslo Fjord in the distance and the Groruddalen valley in low bird's eye view. Free entrance. 

• 🌍 Swimming (outdoor, freshwater), Oslo forest. 24/7. For fresh water swimming, Akerselva is considered clean north of Nydalen. The best spot may be at Frysja (bus 22-25-54 to Stillatorget). Don't forget that many of the lakes in "Oslomarka" are for swimming and recreation (Sognsvann lake for instance). Note that some major lakes (Maridalsvannet in particular) are drinking water for the city, restrictions on swimming and camping. Buy a map and bring your swimming gear! Free. 
• 🌍 Holmenkollen (see above). The area around Holmenkollen (T-bane 1) is well suited for cross-country skiing, but also a nice area for hiking during summertime. While you are there, you can also visit the ski-museum which is located close to the ski-jump. For additional fun, buy a cheap sledge or "akebrett", or rent a proper one from Frognerseteren, and sleigh down from Frognerseteren to Midtstuen station. This was actually the venue of the sleighing competitions in the 1952 Winter Olympics, and the hill is referred to as "Korketrekkeren" (the corkscrew). If you buy a day-card for the subway, you can race all day long, but make sure you are well dressed, as you are going to get wet. The Holmenkollen ski festival, a competition in different types of Nordic skiing takes place here each March since 1892 (only interrupted by WWII). 
• 🌍 Oslo Climbingpark (Climbing in outdoor trees, zips and on a climbing wall.), Trondheimsveien 644 (Metro line 4 and 5 to Vestli, bus 380 and 390 to Bånkallstubben), ☏ +47 469 090 64, post@osloklatrepark.no. See prices and opening hours April to October. Perfect for adults and teenagers who want to challenge themselves with expert guidance. 
• 🌍 Oslo vinterpark, Tryvannsveien 64 (at Tryvann, T-bane 1 to Voksenkollen Station, change to seasonal local bus to the resort.), ☏ +47 22143610. The capital's greatest ski resort for alpine skiing. Ski school and ski equipment rental. Dinig. After ski Fridays. Oslo Vinterpark offers multiple lifts and slopes stretching from the Tryvann Tower, at the top and all the way down to Sørkedalen, where the 1300m Wyllerløypa ends. See weather forecast. 
• 🌍 Oslo Summerpark (climbing park), Tryvannsveien 64 (at Tryvann, T-bane 1 to Voksenkollen Station), booking@oslosommerpark.no. mid May to October. To adults and children: challenge yourself, swing through the trees, fun zip lines, balancing along a section of posts. The Climbing Park is designed and constructed so that trees can grow to their natural shape and size. Routes and paths are placed naturally useing the latest technology and an independent arborist that puts safety first. Knowledgeable training. 

• Eckbo Selskapslokaler AS, Jegerveien 4 0777 Oslo, ☏ +47 22 70 34 00. (updated Jun 2022)

• 🌍 Anexet Sportsbar, Bergensveien 8 (Subway (T-bane) line 4 og 5 to Grorud), ☏ +47 22 25 16 85. Neighborhood bar with football on both large screen and flat screen. Occasionally jazz concerts. Sushi dining, or as a take away. 

As for the whole of Oslo

• Within central Oslo: see the Oslo/West, Oslo/Sentrum, Oslo/Inner North or the Oslo/Inner East article
• Suburbs within southern Oslo: see the Oslo/South article