This lake is east of Lake Melch. A road on the northern shore links Melchsee-Frutt with Tannalp.
Lake Tannen is a popular fishing destination. Ice fishing is available on the frozen lake in winter.
Barbecue spots by Lake Tannen
Spacious barbecue spots are available at the lake's dam and on the eastern shore; they're equipped with dry firewood and grilling implements.
Lake Tannen is used by the Elektrizitätswerk Obwalden power generator, which is why its water level goes up and down depending on electricity requirements.