Although it appears that thousands of tons of boulders have been dropped into Prahran Square in Melbourne, the enormous rocks are actually as light as air. Art and technology studio ENESS (previously) has installed its inflatable “Iwagumi Air Scape” in the park, creating an immersive canyon for visitors to wander through.

While the 16 massive stones have a grainy, granite-like texture during the day, at night, they glow in otherworldly pinks and yellows, creating a surreal landscape that illuminates the urban environment. Audio of flora and fauna accompanies the work, so that when viewers squeeze through what would be a treacherous pass between real boulders, the soft inflatables and mountain sounds wrap them in a natural embrace.

The outdoor installation is on view through August 17, when it will travel to additional locations. Keep up with its stops on ENESS’s Instagram.