The river has an impressive waterfall called Augas Caídas in Mañon parish.
The river Sor is the only river with salmon in Galicia, since unlike others it has not yet been dammed to form a reservoir for hydroelectric generation.
The estuary of the River Sor is the Riado Barqueiro, 5 kilometres (3 mi) long. The river environment, geomorphology, and nearby landscape are of considerable interest.