Bygdy is a peninsula packed with leisure activities for everyone. Many of the city's museums are situated here, and you can easily spend the whole day visiting them. The Vikingskiphuset are a must. There are also great beaches, which are excellent for swimming and sun-bathing. You could see the King's farm, or visit a small castle used as a summer residence by a previous king. Alternatively, take a pleasant stroll among the many magnificent houses of this affluent residential area (home to former prime minister Gro Harlem Brundtland). The best way to get there in the summer is by ferry from the pier in front of the Town Hall. Bus number 30 will get you there all year round.
Huk actually houses two beaches on its site. If you want to shed your worries, stresses, and all of your clothing, the nude beach awaits your arrival. If you want to opt for a more traditional beach experience, there's also a beach that requires clothing at this site. It's only a nice bike ride from central Oslo, or you could even go on skates. You are not allowed to play your radio here (unless you have headphones), or run around with your camera pointing at people to ensure the privacy of other people relaxing at the beach. There is a kiosk that sells ice cream and soft drinks in the summer, and a restaurant just ten minutes away. Nice walking trails and other beaches are nearby.
Sognsvann Lake, and its surrounding countryside, is one of the most popular choices for a city-dweller's day out, both in summer and winter. During the hottest months, the lake is excellent for swimming and sun-bathing, and when the lake freezes over later in the year, it becomes a huge, natural ice rink, popular with skaters of all ages. Sognsvann is the terminus for the Sognsvann branch of the underground, so it is very easy to get to, whether you come from the city center or from Majorstuen. Marked trails take you straight into the woods, with a variety of alternatives for short and long walks. In the winter, the same paths, now snow-covered, are used for cross-country skiing.