Dalen is the terminus of the passenger ferry that wends its way southeast along the Telemarkskanal to Skien (ferries mid-May to early Sept 3–6 weekly; 800kr one-way; t35 90 00 30, wtelemarkskanalen.no), a journey that takes a little under nine hours, leaving around 8am. Extending 105km, the canal links a string of lakes and rivers by means of eighteen locks that negotiate a difference in water levels of 72m. Completed in 1892, the canal was once an important trade route into the interior, but today it’s mainly used by pleasure craft and vintage passenger ferries. It’s also possible to make shorter excursions out by boat and back by bus. The jetty is 750m beyond the Dalen Hotel.