To fully appreciate Jewel Changi Airport in Singapore, you should ideally budget between 3 to 5 hours. If you are simply stopping to see the HSBC Rain Vortex—the world’s tallest indoor waterfall—and taking a few photos in the Shiseido Forest Valley, 90 minutes might suffice. However, if you want to explore the Canopy Park attractions such as the Manulife Sky Nets, the Hedge Maze, or the Mirror Maze, you will need significantly more time. Additionally, Jewel is home to over 280 retail and dining outlets, including world-famous concepts like Shake Shack and the Pokémon Center, which can easily fill an afternoon. For transit passengers, Jewel offers an "Early Check-In" facility for many airlines, allowing you to drop your luggage several hours before your flight so you can explore the complex hands-free. Since Jewel is located "landside" (outside of immigration), you must factor in at least 30-45 minutes to clear security and passport control back into the departure gates after your visit. For locals or those on a long layover, 5 hours allows for a relaxed pace including a meal, some shopping, and a full walk through the gardens.