I'm not a Singapore expert, although I have spent a few days
there and really loved it. It reminded me of being in the
Hawaiian Islands -- warm and lush.
I noticed that no one has mentioned Sentosa Island. That
was my favorite place to visit, and I went there twice.
>From memory, there were two ways to get there -- either by
boat (a very short ride) or by cable car to the top of the
mountain. The cable car station is on an upper floor of the
tall building at the cruise terminal. That's the way I
traveled back and forth to the island, as I was staying on a
cruise ship. The views, gardens, and fountains are lovely,
but they also have a wonderful museum. Be sure and allow a
lot of time for the museum, as it covers so much of
Singapore's past -- the different cultures (with wax figure
settings), as well as the occupation by Japan during World
War II. There are also gift shops if you're into shopping,
and also hiking trails if you want to do that.
Diana in San Diego, California