Yes, you can swim at Singapore Changi Airport, which is home to one of the world's only rooftop airport swimming pools. Located in the Departure Transit Area of Terminal 1 (Level 3), the pool is part of the Aerotel Airport Transit Hotel. It is available to transit passengers who wish to relax between long-haul flights. As of early 2026, the pool features a jacuzzi, a poolside bar, and shower facilities. Access is typically complimentary for guests staying at the Aerotel, while other transit passengers can pay a walk-in fee (approximately S$25–$28) which includes use of the pool, jacuzzi, and towels. It is an outdoor facility, allowing swimmers to watch planes taxi and take off from the nearby runway. Note that since it is located within the transit area, you must have a valid boarding pass and have cleared security/immigration to access it. For those traveling in mid-2026, check for seasonal maintenance, as some facilities may briefly close for upgrades to maintain Changi's high luxury standards.