Disembark your cruise ship and meet your guide 30 minutes after the ship docks, right outside the port gates.
Take off on foot through the city, stopping at the Akershus Castle, the Oslo Cathedral, the Parliament Building, the Royal Palace, and the National Theatre. As you walk, you'll listen to engaging commentary from your dedicated guide on Norwegian history, culture, people, and nature. Since this is a private tour, you'll have plenty of time to ask questions.
Board a private vehicle for the short drive to Vigeland Park. The park is host to a series of more than 200 sculptures by Gustav Vigeland, wrought from bronze, iron, and granite. Next, head for the Holmenkollen Ski Jump, used in the 1952 Winter Olympics and now Oslo's best viewpoint. Your tour's last stop is the Viking Ship museum, where you'll gain knowledge about the Viking era.