The restaurants of Boat Quay with Singapore's high rise towers in the background.
At Clarke Quay, and further down at the Raffles Landing monument, you can book a tour of the Singapore River by what are still referred to as 'river taxis' even though they now only ply a fixed route for tourists. The tour will take you down the river and into the harbor, past the Boat Quay and Merlion statue.
A recorded monologue provides background on each of the sights passed. The tour takes less than one hour and costs S$12.60 (7.97 USD).