The season on the Arda River is coming, as it has a good level for rafting in early spring, when the snow melts and rains often.
The upcoming dates are March 18th-19th, April 15th-16th, May 6th-7th and when a group forms.
Overnight stays can be in tents on the Devil's Bridge, as another option is guest houses in the village of Ardino, which we recommend in colder weather.
Here you can see the detailed program: https://rafting.bg/en/rafting-on-arda-river/