By bus
Singapore's bus system has an extensive network of routes covering most places in Singapore and is the most economical way to get around, as well as being one of the most scenic.
You can pay your bus fare using an EZ-Link stored-value card or the Singapore Tourist Pass, which you tap on the card reader located next to the driver as you board. Do remember to tap your card again, on the reader located at the rear exit, when you alight. You can also pay in cash but you need to have exact change.
Most buses in Singapore have air-conditioning - a welcome comfort in a tropical city.