Sea Rim State Park & Sabine Pass — Gulf Beach, Marsh Boardwalk & a Civil War Battleground

The far southeastern corner of Texas is a place most Houstonians drive past on their way to Louisiana, but the Sabine Pass district hides one of the least-visited stretches of Gulf coastline in the state. Sea Rim State Park is the rare place where the marsh meets the sea directly — 5.2 miles of undeveloped beach backed by a living salt marsh laced with boardwalks and paddling trails, a birding hotspot on the Central Flyway where roseate spoonbills, herons, and migrating songbirds concentrate in staggering numbers. The day pairs beach walking and marsh exploration with the Sabine Pass Battleground State Historic Site, where a tiny Confederate garrison famously repelled a Union invasion fleet in 1863. It closes with a plate of Gulf seafood in the shrimping community of Sabine Pass before the drive back to Houston. Note: Sea Rim State Park sits on an exposed, storm-prone stretch of coast and has had repeated hurricane closures and facility outages — check the park's current status before you go.