The HSBC Rain Vortex at Jewel Changi Airport is the world's tallest indoor waterfall, cascading from a height of 40 meters. It's a central attraction within Jewel, offering a mesmerizing visual and auditory experience. Accessibility is excellent, with elevators and ramps throughout the complex. A visit is suitable for both solo travelers and groups. There are no seasonal restrictions as it's an indoor attraction. Viewing the Rain Vortex is free, but access to Jewel Changi Airport and any associated activities or shopping will incur costs. A typical visit duration ranges from 1 to 3 hours, depending on how much time you spend exploring the surrounding retail and dining options. The Rain Vortex also features a light and sound show in the evenings, adding to the spectacle.