Paris Pont Neuf cave: How French street artist JR turned the oldest bridge in Paris into a giant walk-through art installation

The oldest bridge in Paris looks as though a mountain has swallowed it whole. French street artist JR, nicknamed the French Banksy, has covered the seventeenth-century Pont Neuf with La Caverne du Pont Neuf, an inflatable, walk-through cave stretching about 120 meters across the River Seine. Open free of charge from June 6 to June 28, 2026, the installation pays tribute to Christo and Jeanne-Claude, who wrapped the same bridge in fabric forty years earlier. Inside, visitors find towering rock-like arches and an immersive soundscape by Thomas Bangalter, formerly of Daft Punk, all designed to make Parisians stop and wonder.Why the oldest bridge in Paris suddenly looks like a mountain caveAccording to ArchDaily, the transformation began taking shape on May 21, when JR started inflating the artificial cave over a bridge that has carried Parisians across the Seine for more than 400 years. The structure is up to 18 meters high and built from 80 air-filled canvas arches, which were loaded from the river onto the bridge and unfurled between night and day.JR has said the idea is to bring mineral and nature back into the heart of the city. He also wanted people to do something unusual on the most famous bridge in Paris, stop walking and look around.Inside La Caverne du Pont Neuf: the inflatable arches, immersive sound, and scentVisitors enter through darkness and emerge into the light on the other side. JR described it as a journey each person can take in their own way. The sound design comes from Thomas Bangalter, who previously collaborated with JR at the Opéra Garnier. That earlier project, in 2023, made the Paris opera house appear to be a large cave.The experience also reaches beyond sight and sound. According to Designboom, scent becomes part of an installation by JR for the first time. Euronews reported that the project would include sound and augmented reality.A tribute to Christo and Jeanne-Claude forty years after The Pont Neuf WrappedAccording to AP News, the cave marks four decades since Christo and Jeanne-Claude covered the Pont Neuf in 40,000 square meters of champagne-colored fabric, drawing three million visitors. JR takes a very different approach. Instead of hiding the bridge under a smooth skin, he gives it a rugged, rocky identity, and the result blurs the line between landscape, architecture, and performance.Like the 1985 project, the cave received no public funding. JR paid for it through sales of his artwork and support from private partners. Entry was free, and the installation was open twenty-four hours a day after a weather-delayed start; it could also be seen from the riverbanks, nearby bridges, and passing boats. Boat operators on the Seine even offered cruises right beneath the artwork, with an unobstructed view of the whole installation. For those who wanted more, JR also showed preparatory sketches at Galerie Perrotin in the Marais through July 25.You use AI every day. Now get your AI Quotient. Take the AIQ test.