In temperament the Lundehund is alert, lively and attached to its household, but often reserved with strangers and independent in outlook. It is a quick, agile climber and remains a rare breed outside Norway.
It is a small, rectangular spitz with a wedge-shaped head, upright triangular ears and a tail carried in a loose curl over the back or hanging low. The coat is dense and rough over a soft undercoat. It is usually fallow to reddish-brown with black-tipped hairs and white markings. Its joints allow unusual movements: it can tip its head back until the crown nearly touches its spine and stretch its forelegs out flat to the sides. Its ears can fold shut, which is often said to keep out water and dirt.
The Norwegian Lundehund lost its purpose when islanders began catching puffins with nets, and later when puffin hunting was restricted. With no work left for it, the dog dwindled until it survived mainly around the small settlement of Måstad on Værøy. Norwegian enthusiasts began an organised breeding effort in the twentieth century, and today's dogs descend from the few that remained after distemper outbreaks.