Little kids like to touch stuff. The Dallas Aquarium at Fair Park lets them do that every Saturday at noon. It isn't to be confused with the much more expensive, privately operated Dallas World Aquarium in the West End. That's a fine place for many other reasons (see Best Kids Attraction), but you can't touch. You just look. At the Dallas Aquarium, however, staff members let you touch, hold or gently prod sea urchins, hermit crabs, starfish and other creatures, which are housed in a kid-level tank on the north end of the building. From slippery to prickly to slimy, kids can't get enough of the amazing array of textures. And here's something else you'll like: Parking is free, and admission is only $3 for adults, $1.50 for children.