Where is Ubin? Pulau Ubin is off Changi Point, accessible via Changi jetty (public bumboats) and Marina Country Club (guests of Ubin Lagoon Resort). For the full map on the NParks website (scroll to the bottom of the NParks webpage)
How do I get to Pulau Ubin? Take a bumboat from Changi Jetty, which is near the Changi Village Hawker Centre. Location map of Changi Jetty.
The bumboats will take you to Ubin Jetty. Cost: $2/person. Maximum 12 passengers. Just join the queue and the boats will leave when they have 12 persons. If there are less than 12 persons, you might have to wait a little while until enough people turn up. Or you can pay for 12 persons.
Bumboat operators run from sunrise to sunset. You can make special arrangements with the operators for trips after dark.
Getting around on Ubin: Ubin is ideal for leisurely strolls. There are well-marked roads and trails to explore. Stop by the NParks Information Kiosk near Ubin jetty for a free map and information on the latest happenings.
Cycling is another great way to explore Ubin. Bicycles can also be rented. The friendly bicycle rental people can tell you more about Ubin and advise you on where and how to go to various places of interest. There are also free guided cycling tours.
Also available for hire are 'taxis' comprising panel vans that can take up to 12 persons, or passenger cars for 4 persons. During the weekends, plenty of drivers wait at Ubin jetty for potential passengers. These can be hired by the hour as well as for specific destinations. Many of the drivers are experienced and can bring you to special places or to look for special things. Rates are negotiated before the journey begins. Van drivers will give you their name cards so you can call or page them on your handphones when you are ready to go home, or you can pre-arrange a pick-up time upon your arrival.
For more info:
http://www.wildsingapore.com/ubin/