The Meadows Center for Water and the Environment, formerly Aquarena Springs and later the Aquarena Center, is an educational center in San Marcos, Texas, that seeks to preserve the unique archeological and biological resources of Spring Lake. Formed from more than 200 artesian springs, this lake is one of the world's largest aquifer fed systems. A state antiquities landmark, this site is also believed to be one of the longest continuously inhabited places in North America.