Nature parks are usually not the first thing that comes to mind when people think of Singapore. But Singapore actually has several excellent parks including the Sungei Buloh Nature Park.
Sungei Buloh Wetland Reserve is located on the North of Singapore bordered by the Johor Strait, with a view to Johor Bahru, Malaysia. The reserve, covers an area of 130 hectares, was designated as a nature park in 1989 and gazetted (with an expanded size of 40 hectares greater than the original area) in 2002 and listed as an ASEAN Heritage Park in 2003 (Singapore’s first such park).
I actually see these fly over Johor Bahru fairly often in the morning or evening. They mirror the commuters going and returning from work each day.