Following the conclusion of the 1925 summer season, "Prins Olav" was modified at the shipyard "Fredrikstad Mekaniske Verksted" in Fredrikstad from December 1925. The rebuild created accommodation for 100 passengers, while retaining the original royal quarters on the ship unaltered. "Prins Olav" served as an effective public relations tool for "Nordenfjeldske". The ship was especially popular with foreign tourists, and together with the new-built steamer "Dronning Maud" she gave the company a dominating position in the tourist industry in Northern Norway.