Thanks to its fjord-side location, Oslo is well-placed for exploring nearby islands, with Hovedøya and Gressholmen being a short boat ride away. In the capital itself, be sure to pop into the ultra-modern Opera House, visit the Royal Palace, steam it out in a floating sauna and eat sustainable food at VIPPA. There are plenty of chic hotels to choose from, including Amerikalinjen, which has an enviable city-centre location and modern interiors, and the characterful Camillas Hus, which is housed in a 19th-century villa.
Next, discover which European cities have the best walking routes