This hiking trail connects a castle near Pau with Lourdes Lake. If you prefer active leisure, go mountain biking and enjoy stunning scenery.
Wikipedia (French) http://fr.wikipedia.org/wiki/Chemin_Henri-IV
Lourdes Tourist Office http://www.lourdes-infotourisme.com/web/EN/463-chemin-henri-iv.php
Address Chemin du Lac, 65100 Lourdes, France
Coordinates 43°6'28.635" N -0°4'31.109" E