the thur river canyon die schlucht des flusses thur in the unterwasser settlement and the obertoggenburg region

adventure alpine alps attraction background beautiful beauty blue canton canyon cascade clear creek crystal des destination die europe fall flow flowing flusses forest fresh gallen green high hike hill landscape mountain narrow national natural nature obertoggenburg outdoor outdoors park region river rock scenery scenic schlucht season settlement stone stream summer swiss switzerland thur tourism travel tree untervaser untervasesr untervasser unterwasser valley view water wild wilderness