Complex sentence: At the moment, there is only one section constructed between Besalú and Olot, both municipalities of the "comarca" of La Garrotxa (Catalonia, Spain), but a second section between Figueres and Besalú is about to be started shortly.
Split into simpler sentences: At the moment, there is only one section constructed between Besalú and Olot, at the "comarca" of Garrotxa (Catalonia, Spain). The construction of a second section between Figueres and Besalú is about to be started shortly.