From Houston to Postoffice Street:
Travel Interstate 45 South (Gulf Freeway) to the Galveston Causeway. Soon after crossing the Causeway, I-45 becomes Broadway (SR-87, Ave. J). Continue traveling along Broadway for approximately 2.8 miles. Turn left on 23rd St. (Tremont St.) and travel north approximately .3 miles to Postoffice St. (Ave. E).
From Bolivar Peninsula to Postoffice Street:
Starting from Crystal Beach, travel approximately 10.7 miles to the Bolivar Ferry. Upon exiting the Ferry, take Ferry Road (SR-87) and head southeast approximately .9 miles. Turn right (west) onto Harborside Drive. Travel approximately 1.4 miles along Harborside Dr. Turn left (south) onto 23rd Street (Tremont St.) and travel approximately .3 miles to Postoffice St. (Ave. E).