Singapore wall maps
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Came to Pulau Ubin a few years ago for my CCA (NPCC) Adventure camp. There were a few memorable activities which I have done, such as the high rope obstacles and tent pitching. If you're not from the uniform group but interested to explore this island, you can also check out their website @ http://www.pulauubin.com.sg.
A peaceful place, away from the city away from everything..it's really mind relaxing. If you are bored you can do kayak or cycle around the island, feed the fishes that sort of thing which I find really cool. :)