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3,500-acre manmade island surrounded by Sabine Lake and the Sabine Neches Intracoastal Waterway. The Sabine Causeway at the south end of the island connects Texas and Louisiana. Activities include sailing, golfing, fishing, crabbing, boating, hiking, biking, birding, disc golfing, and camping.
Exhibits include history, natural history, fine and decorative art, and popular culture. The Museum's Music Hall of Fame features a permanent exhibit on the life and career of Janis Joplin who was born and raised in Port Arthur.