Galveston Bay is the second-busiest port in the nation by overall tonnage. Other major ports utilizing the bay include the Port of Texas City and the Port of Galveston. With its diverse marine life, Galveston Bay also produces more seafood than any bay in the nation except the Chesapeake. The Gulf Coast gained its present configuration during the most recent glacial period approximately 18 ka (thousands of years ago). Low global sea levels allowed the Texas mainland to extend significantly further south than it is presently, and the Trinity River had carved a deep canyon through present-day Bolivar Roads on its way
Port Bolivar, Texas between Port Bolivar and Galveston. The Galveston-Port Bolivar ferry can accommodate vehicles as heavy as 80,000 pounds, and as long as 65 feet, as high as 13.5 feet and as wide as 8.5 feet. The ferry was closed because of Hurricane Ike but re-opened on November 11, 2008. Port Bolivar residents are zoned to Galveston Independent School District schools. Residents attend Crenshaw Elementary and Middle School for grades Pre-K3 through 8 on the peninsula. Residents attend Ball High School in Galveston. The current Crenshaw building, in Crystal Beach, opened in 2005. The former Crenshaw campus was in Port Bolivar. Galveston