Pulau Ubin was probably one of my favorite day trips in Singapore. It was full of beautiful, untouched wildlife. It was a mere $2.50 to take a bum boat from the Changi Point Ferry Terminal to Pulau Ubin, which is just a 15 minute ride. There are several places to rent bikes and kayaks. We chose the local resort as they had a kayak and bike rental for $20 deal. However, there are lots of bike rental places that have mountain bikes which may be a better choice for those who really want to bike around the island. The kayaking was beautiful, as we were able to see monkeys jumping around in the tree tops. During our bike ride and walk along the boardwalk, we saw wild boar and huge lizards. There are a few stops along the paths to get water, but make sure to stay hydrated, as there aren't many air conditioned places. Do make sure that if you take a cab, which I recommend, you ask for Changi Point Ferry Terminal at Changi Village -- not just the Changi Ferry terminal. The latter is apparently a military operation and we were promptly shooed out.
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