Complex sentence: There are unpaved dirt trails throughout High Park that are for hikers and walkers only-cycling is permitted (by law) only on paved trails and roads in the park to prevent erosion and disturbance.
Split into simpler sentences: There are unpaved dirt trails throughout High Park that are for hikers and walkers only. Cycling is permitted (by law) only on paved trails and roads in the park to prevent erosion and disturbance.