Aven Armand

Aven Armand is a limestone cave located in the Cévennes National Park of France, in the Lozère département, between Meyrueis and Sainte-Enimie known for the tallest known stalagmite of 30 meters.

[1][2] The cave begins as a narrow pit, descending 75 metres (246 ft) before opening up into an enormous vaulted chamber known as the Grand Salle, or "Great Hall".

[1] The floor is covered with a proliferation of fragile limestone speleothems in a variety of shapes and sizes, created by the slow dripping of water through the stone over thousands of years.

[1] It has been open to the public since 1927, after a man-made tunnel and walkway paths were created to permit easier viewing of the Grand Salle.

[3] In June 2017, French singer Nolwenn Leroy used the Aven Armand cave as a setting for the music video of her single "Gemme".