Located in the Castolon Historic District, the Castolon Visitor Center is open daily during the winter months. River use permits are issued during normal business hours, and entrance fees can be paid at the Castolon Visitor Center. The Castolon Visitor Center has a Big Bend Natural History Association bookstore and nearby restrooms. The visitor center is located in the historic Garlick House, immediately behind the Magdalena House Exhibits. Stop by to meet a ranger and plan your adventure.