Actually, there is a loophole, that allows people to travel for
free, between HarbourFront and Sentosa.
This loophole has been around for many years, and it's a secret
among Singaporeans.
But I won't want to reveal it here, as doing so may cause a
surge in demand, and possibly cause the authorities to remove the
loophole.
If you want to know, can ask me via private message.
Only until the end of this year.
http://www.channelnewsasia.com/news/singapore/sentosa-boardwalk-extends-free-boardwalk-entry-until-end-2017-7670684