Discover the awe-inspiring underwater world of the ocean at S.E.A. Aquarium™ -- the world's largest aquarium! With a day pass, gain entry to multiple marine habitats, viewed through the world's largest window to the sea. Get up close to more than 800 species, including more than 200 sharks. Sneak a peek at a moray eel in a rocky crevice or tour an underwater reef community -- fun for the whole family. If you choose, you can upgrade to include a one-way transfer from your Singapore hotel and S.E.A. Aquarium™.