Selfoss itself is a functional town rather than a destination. Most visitors are here to stock up and use it as a base for the surrounding landscapes. That said, there are a few things worth doing in and near town, and the Ölfusá River that runs through the centre gives the place some character.
The main draw is the network of day trips you can make from Selfoss: the Golden Circle, the south coast waterfalls, Þórsmörk, and the volcanic landscapes around Hekla.