Paul-Armand Gette’s 0m draws our attention to a botanical station dedicated to a fern called Adiantum capillus veneris by the great Swedish botanist Linné, which translates as “Venus’ hair that never gets wet”. The 0m in the Promenade Museum is the start of an excursion into the Bès valley, where the artist has chosen stops, each marked with a 0m to signal the beginning of something. Here, he marks the water emerging from the earth through a petrifying spring.