Actually vacation using iventure is very pleasant ... Just do the confirmation on each vehicle you want to visit ... The process is quick and easy. It's just that when I plan to redeem this iventure card at the citysightseeing counter at Changi Airport (because the information for redeem can be at the airport), but it turns out that I have been circling Terminal 2 and asking in the information section, I can't find the citysightseeing location. But thank God this ticket can be redeemed online