Lots to do here. Do visit Madame Tussauds & Images of Singapore, Wings of Time, Luge ride, Merlion, Aquarium, Butterfly Park & Insect Kingdom, and 4D rides. Avoid the Cable Car and Segway Ride. The above is based on the rides taken by me, there are many more things to do here. This can be done on the day you arrive at Singapore but not the departing day since Wings of Time finishes at 8 pm.