 Complete the following phrase:  There are several sports and recreational grounds on the river banks and gravel pits and artificial lakes adjacent. Tacen Whitewater Course, on the right bank of the Sava in Tacen, a suburb of Ljubljana, was built as a permanent kayaking course in 1948. It hosts a major international competition almost every year, examples being the ICF Canoe Slalom World Championships in 1955, 1991, and 