Throughout the eight-hours of the festival, which ran from 7 p.m. to 3 a.m., Calgarians from all over were pulling on the rain shower of metal cords turning lights on and off creating a simulation of an electrical cloud.
Popular with the crowd, even a brief period of rain didn't detract from the interest of festival-goers as they went right back to it once the rain stopped.
Here's a taste of what happened that night, courtesy of Twitter:
Congratulations, Caitlind and Wayne on pulling off such an AWESOME project! To learn more about the CLOUD project, check out their website.