The South Carolina Aquarium, located in Charleston, South Carolina, opened in May of 2000 on the historic Charleston Harbor. It is home to over 10,000 plants and animals including river otters, loggerhead sea turtles, alligators, Venus flytraps, great blue herons, hawks, owls, sea horses, jellyfish, pufferfish, moray eels, horseshoe crabs, starfish, pythons, sea dragons and sharks. The largest exhibit in the Aquarium is The Great Ocean Tank, which extends from the first to the third floor of the Aquarium; it holds over 385,000 gallons of water and contains over 300 animals. The Aquarium also features a Discovery Lab, where patrons are able to touch horseshoe crabs, starfish, and other marine animals.