Matagorda Island Wildlife Management Area Trails Professional Review and Guide
"This loop hike of roughly 6 miles goes from the bayside boat dock to the beach, along the shore, and back, with an optional detour to the Matagorda Lighthouse. Thanks to the inaccessibility of this barrier island, you and your dog are likely to have the hike, and in fact the entire place, to yourselves.
If you hired a guide to bring you to the island, be sure to make arrangements for a pickup time. If you come in your own boat, allow plenty of time to return to the mainland before dark, unless you are camping. There are picnic tables, running water (not potable), and restrooms at the bayside dock, and picnic tables on the beach. Camping is allowed in both locations."