- 500 Ringgold St, Brownsville, Texas 78520 General Information A visitor-oriented zoological and botanical park dedicated to the preservation of nature through education, conservation and research. *Admission* Adults: $7.00 Children (2-13): $3.75 Children under 2 free Seniors (over 65): $5.50 Membership Information & Map Staff History Collection News and Events Departments Services Volunteers ...gpz.org