A visit to Ripley’s Aquarium will swiftly transport you to the tranquil depths of the ocean—or to a different planet completely. This popular attraction, home to 16,000 sea creatures, features a number of galleries that show different ocean habitats from around the globe. Fancy some up-close time with jellyfish? A backlit display can transfix even the most jaded visitor. An underwater tunnel lets you walk through a shark tank. A journey into Canadian waters reveals what lurks beneath. (Hint: There’s plenty of kelp in the Pacific.) But not everything is behind glass: Aquatic fanatics can get in the water to swim with a stingray or assist the animal caretakers.