The 40-metre high Rain Vortex, which is the world's tallest indoor waterfall, is seen from inside Jewel Changi Airport in Singapore, April 11, 2019. REUTERS/Feline Lim

A skytrain which connects the various terminals in Changi Airport is seen inside Jewel in Singapore, April 11, 2019.

A man in a chicken costume sits in mist inside Jewel Changi Airport in Singapore, April 11, 2019.

A man walks past a flower display inside Jewel Changi Airport in Singapore, April 11, 2019.

A YotelAir hotel room with a raised wheelchair-accessible bed at Jewel Changi Airport in Singapore, April 11, 2019.

Self check-in kiosks are seen inside of Jewel Changi Airport in Singapore, April 11, 2019.

A man walks past a section of the 4-storey plant display inside Jewel Changi Airport in Singapore, April 11, 2019.