Lidingö is a municipality with about 45,000 inhabitants, with a land area of 30 square kilometers, consisting of the main island Lidingö, and some minor islands. Lidingö contains suburban areas with high-rise buildings as well as single-family houses and a nature reserve. Lidingö is part of the Uppland province.
Lidingö is connected to Stockholm by two parallel bridges at Ropsten, the end station of the subway in the Östermalm district. The light rail Lidingöbanan, as well as buses, carry on to Lidingö. Just as inner Stockholm, Lidingö is in the inner public transport zone.
The Stockholm congestion tax has an exception that favours Lidingö: A vehicle that passes a toll station at Ropsten, and another toll station within 30 minutes, pays no fee. This means that a car can pass from the national road system to Lidingö, and the other way around, without paying (provided that each leg takes less than 30 minutes, which cannot be guaranteed during rush hours).
Lidingö is well within reach for bicycles from central Stockholm, and has some stands for Stockholm City Bikes. 
Sjövägen is a public transport ferry from Nybrokajen in central Stockholm, passing Nacka on the way to Lidingö. 
Most of Lidingö is accessed by public transport, car, walk and bicycle. Timetables for the public transport on SL.se 
You can rent the Stockholm City Bikes at three locations at Lidingö: Stadshuset, Baggeby and Torsvik.
Lidingö has a lot of nature reserves and a beautiful scenery. Lidingö was also the home of sculptor Carl Milles, humanitarian Raoul Wallenberg, and engineer Gustaf Dalén.
Millesgården, Herserudsvägen 32 (on Lidingö, T Ropsten and then the Lidingöbanan train to Baggeby or buses to Torsvik), +46 8 446 75 90, Open M-Su 11:00-17:00 15 May-30 Sep, Tu-Su 12:00-17:00 1 Oct-14 May. In the former residence and studio of the famous sculptor Carl Milles, his own work is showcased alongside contemporary Swedish and international artists. A new extension was recently built for temporary exhibitions. Adult admission 80 SEK.
Bosön, the Swedish Sports Confederation's center for training. Several world-famous athletes work out here. Training facilities open to public, aswell as hotel and restaurant.
Fjäderholmarna is a group of small islands, reached by ferry from Stockholm.
Lidingö kyrka, the 16th century town church, beatifully situated at a waterfront hill. The cemetery contains graves of prominent Swedes, such as Nobel laureates Gustaf Dalén and Pär Lagerkvist.
Långängens Gård Nowadays this nature reserve is the home of a café/restaurant surrounded by spectacular nature and walking trails. But the area around here dates back to Viking times. Just northwest of the farm´s buildings is a grave field where Viking Age residents were buried.
There is also a lot of public art at Lidingö. Come and get your map (Cykel- och Fritidskartan) at the Town hall (Stadshuset), Stockholmsvägen 50, Lidingö.
There are a lot of hiking and cycling trails, beaches, big meadows and even two farms.
Hiking and cycling all across the island. There are six culture walks across the island. Mpas and information about them are found here: 
Fågelöudde, a beach, most frequented by families.
Kottlasjön, a lake for bathing in the summer, and ice-skating in the winter.
Ekholmsnäs, a semi-artificial hill, a downhill ski slope, with equipment rental. With artificial snow, it keeps open as long as temperatures are below zero. Great view. Mountainbiking during warm seasons.
Lidingö Golfklubb, an 18-hole golf course. The area is open for hiking during summer, and cross-country skiing during winter.
Ekholmsnäs Golf, a 9-hole golf course, upwards the Ekholmsnäs hill.
Lidingöloppet the world's largest cross-country running race. Held annually in September, with approx. 45,000 participants. One of four legs of the Swedish Classic Circuit. 
Rod fishing is allowed without a license along the island's coast, but not in Kottlasjön or other lakes.
Elfviks Gård, a farm with horses, pigs, cats, dogs, rabbits, chickens, cows and sheep. There are also several boutiques with local products and during summer there is a small café.