Boutique Hotels in Oslo

Oslo's transformation has been a waterfront story, and the harbour is where to start. The Opera House, by the local firm Snøhetta, rises out of the fjord as a slope of white marble you are meant to walk up; beside it stands the Munch museum, thirteen storeys devoted to Edvard Munch and his Scream. Along the water, the Astrup Fearnley Museum of Modern Art — a Renzo Piano building of glass and sail-like roofs on the Tjuvholmen islet — sits at the heart of the city's contemporary-art quarter, with a sculpture park and a small beach at its tip.

Inland, the centre rewards a wander. Karl Johans gate runs from the central station up to the Royal Palace, past the cathedral and the National Theatre; the rebuilt National Museum, the largest in the Nordics, gathers the country's art under one roof and holds another version of the Scream. Akershus Fortress guards the harbour from its headland; Vigeland Park fills with Gustav Vigeland's massed human sculptures; and Aker Brygge and the neighbouring Tjuvholmen supply the waterfront restaurants and bars. It is a lot of culture in a small, walkable area.

Most visitors stay in the compact centre, between the central station and the Royal Palace, or out on the waterfront where the new Oslo is at its best. The Thief, the city's design hotel, sits on the Tjuvholmen islet in the middle of the contemporary-art quarter, hung with a collection of its own and a footbridge from the Aker Brygge restaurants — a sense of the waterfront city at its most current. The centre keeps you close to the museums and the shops; the fjord side keeps you close to the water and the art.

What sets Oslo apart from other capitals is how quickly the city ends. A public ferry crosses in minutes to the forested islands of the inner fjord — Hovedøya with its monastery ruins, Gressholmen for swimming — while the metro climbs north into the Marka, the vast forest where the city skis in winter and hikes and cycles in summer, with the Holmenkollen ski jump and its view over the whole fjord. Few capitals let you be in deep woodland, or swimming off a rock, half an hour from a gallery.

Summer, roughly late May to August, is Oslo at its best and busiest: long days that barely darken, an outdoor-living city of harbour swimming, island ferries and rooftop bars, with midsummer light that runs almost round the clock. May is a fine time too, fresh and green, with the country's exuberant National Day on the 17th centred on the capital. Autumn is crisp and quietening; winter is cold, dark and genuinely atmospheric, the season for the Marka's cross-country trails, the indoor museums and the candlelit cafes, with snow likely from December. There is no bad time — only different cities — but for the waterfront, the islands and the light, summer wins.