During the Heritage Days, all the fountains from Saint-Cloud park were all on. Last time it happened was in 2019. Taken with Nikon Z7 II, Nikkor Z 14-24mm f/2.8 S and Nisi 100mm ND1000 filter at 20s | f/8.0 | 14mm | ISO 64 – https://flic.kr/p/2mvW36p