Photo: GetYourGuideLed by a local guide, this three-hour ride threads together the best of central Oslo, from the Opera House and the harbour to leafy parks and quiet backstreets you would never find alone. The pace is gentle and the city is flat and bike-friendly, so it suits anyone reasonably comfortable on two wheels. Wear layers and closed shoes, bring a small bottle of water, and expect plenty of photo stops as your guide fills in the stories behind the sights.