Complex sentence: The Charles River Bike Path is a mixed-use path that follows the shores of the Charles River from Boston Massachusetts to Norumbega Park in Newton, passing through Watertown and Waltham.
Split into simpler sentences: The Charles River Bike Path is a mixed-use path in the Boston, Massachusetts area. It follows both shores of the Charles River from Boston, Massachusetts to Norumbega Park in Newton, passing through Watertown and Waltham.