- A place so quiet and , Pulau Ubin is filled with wild fragrances and exotic wildlife. A hilly island off the coast of Changi (on the eastern side of Singapore), it holds one of the last landscapes still surviving in modern Singapore. Pulau Ubin has mangrove swamps, rubber plantations and secondary jungles. The main occupations of the people include working at the quarries, fishing and growing ...www.rgs.edu.sg/events/cyberfair98/ubin/media/ubin.html