'Luknja' hole in the Soča at Plave
Under the road bridge at Plave the Soča, during floods, has drilled a deep hole into the bedrock that can reach about 24 m depending on gravel deposits. The Solkan hydropower reservoir backs up the river here, so at suitable low water the current is barely noticeable. The riverbed is mostly bare gravel between rocky banks, with a few trout and chub and some WWI remains. Water is about 4 °C in winter and 16 °C in summer, and visibility is usually poor (better in winter).
Tiefe: 0–24 m