Sightseeing, Parks: SeaWorld should be on everyone's list when visiting San Antonio, no matter what your age. Although they have some great rides, such as the Steel Eel and Great White rollercoasters, the best reason to go to SeaWorld is for the animals and the animal-centric shows. They have dolphins and stingrays that you can "pet" if you are lucky enough for them to swim by you, a magnificent oceanarium filled with all sorts of creatures, including sharks and giant sea turtles. The shows are outstanding and include dolphins, Beluga whales and sea lions. Oh, and did we mention the penguins? Yes, there are penguins in Texas, if you can believe it!