Narrow boat on Pontcysyllte Aqueduct, UNESCO, Llangollen Canal over valley of the River Dee, Wales, United Kingdom

narrow boat pontcysyllte aqueduct llangollen canal river dee wales great britain europe cruising waterway unesco valley green landscape boating waterways scenic engineering bridge transportation travel tourism recreation heritage adventure nature relaxation leisure outdoor picturesque historic site elevated experience vessel peaceful ecology tranquility journey exploration hills water local flora riverside panoramic