The famous 40-meter indoor waterfall, known as the HSBC Rain Vortex, is located in the Jewel Changi Airport complex, which is connected to the terminals but is outside of the secure transit area. If you are arriving or departing, you can reach Jewel via pedestrian link bridges from Terminals 1, 2, or 3 (a 5–10 minute walk). If you are a transit passenger with a layover, you must clear immigration to enter Jewel and see it up close. A popular "pro-tip" for 2026 travelers is to take the Skytrain that connects Terminal 2 and Terminal 3, as it passes right by the waterfall, providing a spectacular "sneak peek" even if you don't have time to leave the transit zone. The waterfall operates daily, with a stunning light-and-sound show occurring every hour from 7:30 PM until late evening (usually 12:30 AM).