110-mile-long Padre Island offers one of the last natural seashores in the nation. Each end of the narrow sand island is developed with parks and resorts. But in between, the National Seashore preserves an unblemished 80-mile stretch. Information about swimming beaches and extensive primitive beach-camping areas and nature trails at ranger station. Visitor center with gifts and concessions, bathhouse, and picnic area. Beachcombers may collect seashells, driftwood, perhaps prized glass floats from Portugal or the Orient, and other items washed in by tides. Federal law prohibits collecting historical artifacts like flint points, antique coins, or any other item more than 100 years old. Use of metal detectors is prohibited on the National Seashore. Admission fee.