Grotto of Sainte-Colombe

Impressive grotto and pilgrimage site. You should really stop here and enjoy the gentle coolness and fill your bottle with the water from the Karlsquelle (which is said to have healing powers). Inside the grotto, a small karst spring rises. The water flows as a trickle from a stalagmite into a shallow basin. There is a crucifix under the entrance arch of the grotto, which is dedicated to Saint Columba of Sens, a martyr from the 3rd century. Since the 13th century, the place has been the destination of a pilgrimage that takes place on August 15th. The spring water is said to have miraculous healing powers. More: de.wikipedia.org/wiki/Grotte_de_Sainte-Colombe

romantic rock cave with a water source and place of pilgrimage for all worries, wonderfully cool in summer
Prayers before the climb through the Pichoux Gorge (Gorge of 1000 Springs), it doesn't get more romantic than that.

Linger here for a moment and let the landscape and place work on you - both are great.