If you want to sit back and soak up Singapore's sights, try boat tour along the Singapore River. Boat tour depart from docks along Clarke Quay, every 20 minutes, with charges $S 18 for 30 minutes tour.
Night time river cruise is great. You can sit outside the boat and enjoy the fantastic light a long the river and the sights.
There is also a guide on board, who gives running commentary of each attraction as you pass, so, you can get some knowledge about Singapore River and Its history.
Photos credit; Google Image
Acquaintance