When on the hunt for the perfect Galveston souvenir, look no further than Seawall Boulevard. This 10-mile sidewalk has everything from tasty snacks and cold drinks to beach supplies and of course, all the island-themed merchandise you could want. Catering to beachgoers, the stores on the Seawall feature swimsuits, t-shirts, coastal décor, shoes, hats, and so much more.