Singapore Chinese Gardens is a nice quiet place in the middle of Singapore
I went from the metro station to the garden. Which was a short walk in a field. 
Then you come into the park. The first building you see when you walk into the park from this side is a tower. You can go into the tower and find a spiral staircase. I highly recommend you take a deep breath and walk all the way to the top. There you will find a nice view of the city.
When you keep walking you will see the next building a bit more in between the trees and next to the water.
It is really nice in the garden. Not so busy as the rest of the city.