Many people have the assumption that Sentosa and Resorts World Sentosa are the same, but actually, they aren’t. Instead, Sentosa is the name of the island, while Resorts World Sentosa is an integrated resort on the island.  Resorts World Sentosa is the island’s most popular attraction, so maybe that’s where the misconception comes from. It’s in Resorts World where you can find the Universal Studios Singapore theme park, Dolphin Island, S.E.A. Aquarium, casinos, and more.  Attractions aren’t the only things that Resorts World Sentosa has. There are also several hotels and restaurants.