Day 2: Sentosa Island
Grab a cable car across the water to Sentosa Island and make a day of it. The biggest attraction is Underwater World, a huge aquarium with plenty of fish and sharks to observe, with a conveyor-belt tunnel going through a tank being the main attraction. Entry to Underwater World includes a visit to Dolphin Lagoon (get there by shuttle bus), where you can either sign up for a personal “meet a dolphin” session or watch a choreographed show. Try to get off the beaten track at Sentosa by following some of the walking paths through the forested areas rather than always using the shuttle bus. There are dozens of other activities on Sentosa, and plenty of places to eat and relax.