At the far southeast corner of Texas lies a remote and unique coastal park. Sea Rim State Park has nearly 2 miles of Gulf shoreline and 4,000 acres of marshlands. At this park, you can camp, go birding and beach combing, paddle in a canoe or kayak, swim, fish, hunt (in season) and walk. Stroll along the Gambusia Nature Trail Boardwalk, which takes you through the marsh.