Soča–Tolminka confluence (Tolmin)
Since the Doblar hydropower dam was built in 1936, its reservoir has backed up the Soča as far as the Tolminka confluence just below Tolmin, so the river here flows slowly, especially at low summer water. You can dive either upstream against the gentle current or downstream towards the reservoir. The Tolminka is too shallow to dive but brings slightly clearer water. Depth is around 5 m but shifts with gravel banks after floods; most fish are in the deeper parts of the channel.
depth: 0–5 m