Explore the stunning Oslofjord on a guided island-hopping tour from Oslo. Travel by ferry to three scenic islands, including Hovedøya, where you’ll explore the ruins of a 12th-century abbey and learn how English monks helped Christianize Norway after the Viking Age. Walk through forests, birch groves, and open pastures, and discover historic fortifications and cannons from the Napoleonic Wars. Follow coastal trails with stops at sandy beaches, viewpoints, and dramatic sea cliffs, while hearing stories of Oslo’s rich past and natural heritage from your guide. Continue to peaceful Gressholmen and a charming cottage island with traditional wooden houses and flower-filled gardens. Enjoy free time for a picnic or local snacks, relax by the water, or take a refreshing swim in the fjord. End your journey with a scenic ferry return past landmarks like Akershus Fortress, City Hall, and Aker Brygge.