If you love go-karting or are just an adrenaline seeker, you MUST check this event out! This is Singapore's first indoor go-kart track and these karts can go as fast as 40km/h (requires a driver's license) with 23 corners in the track. I emailed and called them to pre-book a slot but I think they're pretty overwhelmed with the response so I highly recommend visiting during the day to avoid queuing for hours. Alternatively, you can check the link below as they'll often update days/timings they think you should avoid.
Event details:
https://kf1karting.com/pages/rws