The ferry from Flåm through the Aurlandsfjord and into the narrow Nærøyfjord is one of the most spectacular short boat journeys in the world. The Nærøyfjord, a UNESCO World Heritage arm of the Sognefjord, narrows to just 250 metres at its tightest point, with waterfalls pouring from cliffs that rise so steeply they cut off the sky. The ferry to Gudvangen takes about two hours.
This is the centrepiece of the "Norway in a Nutshell" tour, and deservedly so. The journey is best on a clear day, though the mist from waterfalls makes a grey day atmospheric in its own way. Ferries run several times daily in summer; book in advance in July and August when the route is extremely popular.