The classic gd2 run of the south-west, and an excellent introduction to whitewater for beginners. The first km down from Tarr Steps holds the best rapids.
Putin · Takeout
Putin at Tarr Steps, on the minor road between Hawkridge and Liscombe (south-east of Withypool). Takeout in Dulverton on river left just before the main bridge, using the public carpark rather than the limited parking by the river.
Rainchasers is best experienced as an app.