Home to pretty treasures, Oppheim is Norway's best kept secret. A gripping city on its own right, Bergen also deserves a visit. Bergen is bestowed with interesting set of attractions like The Flam Railway, Fjord Safari, Stegastein Viewpoint. Also, to reach Oppheim, you'll have to take a flight to Bergen; so its not really a detour. And even if it is, the city is worth paying at least a quick visit. A holiday in Oppheim can generally be of 1-2 days.
Yes,it is that simple really! Enjoy your trip! Keep travelling!