The famous HSBC Rain Vortex light and sound show at Jewel Changi Airport in Singapore typically lasts about 5 minutes. This spectacular display features choreographed light projections and music that turn the world's tallest indoor waterfall into a vibrant, multi-colored canvas. The shows usually run every hour on the hour during the evening, typically starting at 8:00 PM and 9:00 PM on weekdays, with an additional show at 10:00 PM on Fridays, Saturdays, and Sundays (though schedules can change for special holidays or events). Because the show is visible from multiple levels of the Jewel complex, including the Forest Valley walking trails and the various dining terraces, you don't necessarily need to be at the base of the waterfall to enjoy it. Many travelers find that the view from the second or third floor offers the best perspective of the projections hitting the cascading water. The show is free of charge for all visitors, making it one of the most popular activities for those on a layover or visiting the airport for a meal, and it serves as a perfect, high-tech conclusion to a stroll through the lush indoor gardens.