1. Enjoy The Wonders Of Jewel Changi Airport
This airport is one of the top things to do in Singapore. Jewel Changi Airport is a wonderful natural-themed entertainment and retail venue. This vast 10-floor building contains hundreds of shops, eating establishments, and attractions that are somehow linked to a passenger terminal of the airport.
You will find an ambitious Cloud Forest and a vast Canopy Park located in the indoor gardens. There is also the HSBC Rain Vortex, the world's highest indoor waterfall at an impressive 40-meter high and flows right through the HSBC Rain Vortex building, making this one of the things to do in Singapore airport.