When in Sentosa, make the most of Resorts World. It is one of the must-see places to visit in Sentosa. One fun experience would be a visit to the Casino. You would need passports show that you are above 18 and to get free entry (locals have to pay a cover) and also ensure you carry formal wear. Beach clothing and flip-flips are not allowed here. But you can hit the roulette tables or play blackjack and enjoy various promotions on drinks and food.