What are these strange signs projected onto the Bellanda Tower in Nice?

"What do these cabalistic signs that appeared on the Bellanda Tower tonight mean ?" Like other readers, Jean wonders about the appearance of luminous shapes projected onto the facade of this monument on Castle Hill in Nice.
Nothing to do with any occult science, let it be said! This is a work by the artist Nicolas Floc'h, called "Gulf Stream, 2017-2025."
This is on display for walkers as part of the Biennale of Arts and the Ocean , which will be held in the capital of the Côte d'Azur from this May until October 31, 2025.
A rich artistic program"For the first time, the Nice Arts Biennale is enriched by works in public spaces," the City announced.
A route that unfolds along the Promenade des Anglais and the Promenade du Paillon.
In addition to the intriguing work projected onto the Bellanda Tower, five others are to be discovered, all of which have the common point of being inspired by the "imaginary world of the ocean" .
A special program as Nice hosts, from June 9 to 13, 2025, the 3rd United Nations Conference on the Ocean .
Full program on Anneedelamer.nice.fr
Nice Matin