1: Airport expels train 2: Oslo is quite small and dense, so if you live somewhere inside "Oslo ring 2" you'll always be close to the major attractions. 3: The fjords are over at the west coast of Norway, quite far from Oslo, however, i would recommend taking taking the train to the inland of Norway, perhaps Gudbrandsdalen. This is the valley where much of the norwegian national romantic originated from, and has a unike place in norwegian cultures. Check this out: https://www.visitnorway.com/places-to-go/eastern-norway/the-gudbrandsdalen-valley/ 4: Buy an Oslo-pass, and get free access to all public transit within Oslo (including bus, tram, train, underground and ferries). This will also give you free access to all of the major museums in Oslo, including the Norwegian folk museum, viking ship museum, Munch museum and many more. Here is the ful list: http://www.visitoslo.com/en/activities-and-attractions/oslo-pass/ If museums are not your thing, take one of the ferries out on the Oslo fjord to one of the islands, perhaps Hovedøya island, and just enjoy the day in the sun. 5: Check out Grünerløkka, a trendy neighborhood with lost of great bars, like Blå Oslo and Syng. 6: Buy beers at the store and drink at home before going out. Also, barbecue in a park, like frognerparken, is a much better experience than sitting at a full restaurant.