The Loobu rises in the limestone country south-west of Rakvere in northern Estonia and runs north through Lahemaa National Park to Eru Bay on the Gulf of Finland. It is a small, intimate river of a narrow catchment, drawing clear, cool water over a bed shaped by the Baltic Klint — the great limestone escarpment that crosses northern Estonia. At Joaveski, ten kilometres up from the sea, the river steps over the klint in a cascade of low limestone ledges. It is one of the handful of Estonian rivers where wild salmon and sea trout still reproduce successfully, the fish running up off the Gulf. The character is clear, limestone-influenced freestone water on a gentle northern gradient, with riffles and small pools. Wading is steady on firm rock and gravel, with care over the slick limestone ledges of the cascade.

Wading: Slick limestone ledges at Joaveski

Summer-autumn runs, seasonal patterns vary by region