In response to "How Can We Improve?"
While digital passport seems to be an interesting idea, there is a relatively high barrier to entry for guests to participate in this activity. Digital passport shortchanges those guests who are here for a short stay (e.g. one day) and those who are here for relaxation and recreation. Guests who are here for one to two days may not have time to participate in sufficient green activities to be able to redeem something. And hence, they may not attempt to even collect or sign up for the digital passport. Bear in mind that most people who come to Sentosa (be it locals or foreigners) will tend to visit the main attractions like USS or relax at the beaches and this itself would take up one full day. There won\'t be much time for them to participate the other green activities. Furthermore, green activities like mangrove cleanup will take up lots of time too, thereby decreasing the amount of time they have left for other activities, be it green activities or attraction visiting. So even if there are incentives like vouchers, it may not be attractive to guests since they may deem it to be impossible to collect all the stamps within a short one or two days.