Camping at Sea Rim State Park puts you where the Gulf of Mexico meets 4,000 acres of coastal marsh at the far southeastern edge of Texas — 22 miles south of Port Arthur on TX-87, right on the edge of Sabine Pass. The park protects 5.2 miles of Gulf beach and a vast brackish marsh system that stretches inland toward the McFaddin National Wildlife Refuge, the J.D. Murphree Wildlife Management Area, and the western edge of the Big Thicket biosphere.
It’s one of the least-visited and most genuinely wild state parks in Southeast Texas. The beach camping here is as remote as it gets while still being in a Texas state park. The Gambusia Marsh boardwalk is one of the most remarkable short wildlife walks on the entire Texas coast. The kayaking trails through the marsh are unlike anything else accessible within a few hours of Houston.
Here’s everything you need to know before you go.
Active Alerts — Check These Before You Book
East Beach closed: As of February 11, 2026, the East Beach is closed to camping and vehicles due to a wash-out. Contact the park to confirm current status before planning any camping in the East Beach area.
Floating Primitive Campsite closed: The 13×20-foot floating boat-in campsite has been closed for extensive repairs since December 2023. No reopening date has been announced at the time of writing. If you were planning a boat-in camping experience, this site is not currently available.
Prescribed burns: Burns are planned December through March depending on weather conditions. Some camping areas and trails may close temporarily. Contact the park before your trip during winter months.
Call the park at (409) 971-2559 to confirm current conditions before any trip.
Getting There
Address: 19335 S. Gulf Fwy (TX-87), Sabine Pass, TX 77655
Phone: (409) 971-2559
Gate hours: Opens 8am. Day use customers must exit by 10pm.
From Port Arthur: Take TX-87 South approximately 22 miles to Sabine Pass. The park is on the right (Gulf side) of the highway.
From Beaumont: Take US-69/US-287 South to Port Arthur, then TX-87 South approximately 22 miles.
From Houston: I-10 East to Beaumont, then US-287 to Port Arthur, then TX-87 South. Approximately 90 minutes from the Houston metro.
After-hours arrival: If you’re arriving after the office closes, contact the park at (409) 971-2559 before 6:30pm on your arrival day to receive the gate code and cabin key. Late arrivals for the floating primitive campsite (when it reopens) are required to camp on the beach until proper registration the following morning. All overnight campers must register at Park Headquarters by 9am the next morning.
Entrance Fee
$5 per person per day (ages 13 and older). Children 12 and under free. Texas State Parks Pass covers daily entry.
Campsite Types
Electric and Water Sites — Piping Plover Loop (15 sites, $20/night)
The 15 developed sites at Sea Rim are located in the Piping Plover loop, positioned next to the beach access and the dune boardwalk. Each site has a picnic table, outdoor grill, tent pad, water hookup, lantern post, and 30 or 50-amp electric service.
These sites are reservable at texasstateparks.reserveamerica.com. Important: When you reserve a site in the Piping Plover loop, it will not be site-specific. You will be assigned a specific site when you arrive at the campground.
The loop sits between the park facilities and the Gulf beach — close enough to walk to the water, with the dune boardwalk right there, and far enough back from the surf that high tide isn’t a concern at the site itself. For campers who want the Sea Rim experience with power and water, this is the option. Up to 8 persons per site.
Fees: $20/night + $5/person/day entrance fee
Primitive Beach Drive-Up Sites — West Beach (75 sites, $10/night)
The defining Sea Rim camping experience. Seventy-five primitive sites in the West Beach camping areas — you drive onto the hard-packed sand above the tide line, find an open area, and that’s your site. No hookups, no assigned spot, no facilities at the site. First-come, first-served only — these sites cannot be reserved in advance.
These are the sites most reviewers describe when they talk about Sea Rim — camping on the beach while admiring the night sky, being lulled to sleep by the sound of surf, waking up to a sunrise over the Gulf with nobody else in sight. That experience is real here, particularly in fall and winter when the beach empties out.
What to know:
- Sites can close without warning due to extreme high tides or weather events
- Ground fires are allowed — contained fires only, follow all fire rules and check current burn ban status
- Equestrian camping is allowed on the West Beach — horses are permitted, no corrals or pens provided, must bring portable structure or tether to trailer
- Call (409) 971-2559 before arrival to confirm current beach conditions, especially after any weather event
Fees: $10/night + $5/person/day entrance fee
Floating Primitive Campsite — CURRENTLY CLOSED
A 13×20-foot wooden floating platform on the marsh, accessible only by shallow draft boat or kayak. Four-person maximum. No ash-producing fires allowed on the floating platform. Waste disposal bucket with solid/liquid waste bag required. When this site reopens, it will be the most unusual camping experience available at any Texas state park — overnight on the marsh, completely surrounded by water, accessible only by paddling in. Monitor tpwd.texas.gov/state-parks/sea-rim for reopening news.
Fees when available: $15/night + $5/person/day entrance fee
The Gambusia Marsh Nature Trail — Don’t Miss This
The Gambusia Marsh Nature Trail boardwalk is the signature non-beach experience at Sea Rim. Named for the Gambusia fish (mosquitofish) that inhabit the marsh, this elevated boardwalk loops through the coastal marsh behind the beach dunes — the landscape where dense Phragmite cane, cordgrass, and salt meadow grasses grow in brackish water that’s neither quite land nor quite sea.
Interpretive signs along the route explain the marsh ecosystem — the role of the root systems in building marsh soil, the birds and animals that depend on the habitat, the hydrology that makes this coastal marsh different from the inland freshwater systems of the Piney Woods. It’s genuinely educational in a way that doesn’t feel like a lecture.
The boardwalk is the best birding spot in the park during migration. The dense cane along the boardwalk edges provides cover for small birds moving through — warblers, vireos, and flycatchers drop into the marsh vegetation during fall and spring migration in numbers that can be stunning on the right morning.
Practical note: The trail is prone to flooding after heavy rainfall. Check with the park at (409) 971-2559 or the TPWD website before visiting to confirm the boardwalk is currently open.
Kayaking and Paddling — The Other Sea Rim
Sea Rim has over 10 miles of designated kayak and canoe trails winding through the coastal marsh. This is the part of the park that most visitors miss — the beach gets the attention, but the paddling trails give you a completely different experience.
The marsh from water level is a different world than from the boardwalk. Alligators slide off banks. Yellow-crowned night herons stand motionless in the cane edges. Blue crabs move in the shallows below your kayak. The brackish water channels meander through dense marsh vegetation with no other human presence in most directions.
Canoe and kayak rentals are available at the park. You don’t need to bring your own boat to paddle the marsh. Check current rental availability by calling (409) 971-2559.
For paddlers who want to combine overnight camping with marsh paddling, the floating campsite (when it reopens) is the ultimate Sea Rim experience. Until then, the primitive beach sites combined with a day on the marsh water is the next best thing.
Life jackets required for all paddlers. Texas law requires children under 13 to wear one at all times on the water. Stay low and move slowly when entering or exiting any canoe or kayak.
Fishing at Sea Rim
Sea Rim is an excellent saltwater fishing park. Two saltwater fishing areas are located in the West and East Camping Areas (note: East Beach is currently closed — access to the East fishing area may be affected, confirm with the park before planning a fishing trip to that section).
What you’ll catch:
- Speckled trout (spotted sea trout) — the signature Gulf Coast game fish at Sea Rim. Shore fishing and surf fishing produce consistently
- Red drum (redfish) — particularly in the surf and near the inlets
- Flounder — along the beach at dawn and dusk
- Blue crabs — throughout the marsh channels
- Shark — surf fishing from the beach, particularly at night
No state fishing license is required for shore fishing at a Texas state park. A license is required if you’re fishing from a boat or kayak in the marsh or Gulf.
Birding at Sea Rim
Sea Rim State Park is a recognized stop on the Great Texas Coastal Birding Trail. The park’s combination of Gulf beach, coastal dunes, and vast brackish marsh positions it directly in the Central Flyway — one of the four major migration routes for birds traveling through North America.
What that means in practice: during spring migration (April–May) and fall migration (September–November), the park becomes a rest stop for enormous numbers of migrating birds crossing the Gulf. Warblers, swallows, vireos, grosbeaks, buntings, and flycatchers drop into the marsh cane and dune vegetation to rest and feed. On a good migration morning, the variety of species visible from the Gambusia boardwalk alone is extraordinary.
Year-round species: Snowy egrets, great blue herons, yellow-crowned night herons, roseate spoonbills in the marsh shallows, brown pelicans over the surf, laughing gulls, and resident shorebirds throughout the beach.
Waterfowl season (fall/winter): The marsh hosts significant numbers of ducks and other waterfowl from October through February. Public waterfowl hunting is allowed in season — birdwatchers and hunters share the marsh during these months. Wear blaze orange if you’re hiking or paddling during hunting season.
Ranger programs: TPWD offers Learn to Bird programs at Sea Rim monthly — a ranger-led introduction to birding with equipment provided. Check the park events calendar for upcoming dates. The Adopt-A-Beach cleanup events also run periodically if you want to contribute to keeping the park in good shape.
Horseback Riding
Sea Rim is one of the few Texas state parks that allows horseback riding on the beach and through the marsh. Three miles of Gulf beach (Middle Beach) are open to horses, plus over 10 miles of marsh trails.
No corrals or pens are provided by the park — equestrian campers must bring a portable structure or plan to tether horses to their trailer. The West Beach primitive camping area allows equestrian camping.
The combination of beach riding at sunrise with Gulf views and marsh trail riding through the coastal prairie is genuinely one of the more unusual outdoor experiences available in Southeast Texas.
Wildlife
Sea Rim borders the McFaddin National Wildlife Refuge and the J.D. Murphree Wildlife Management Area — the result is a wildlife corridor that functions as a single large coastal ecosystem. Here’s what you’ll actually see:
American alligators — Present throughout the marsh and along the shoreline adjacent to the water. Standard SETX rules apply — 30-foot distance, never feed, keep children and pets away from the water’s edge.
Monarch butterflies — Sea Rim sits on the Monarch butterfly migration route. Fall migration (September–November) can bring spectacular numbers of Monarchs resting on the dune vegetation before crossing the Gulf.
Bobcats and coyotes — Seen at dawn and dusk along the marsh edge and beach. Common but not always easy to spot.
River otters and mink — Present in the marsh waterways. Dawn paddling increases your chances of a sighting.
Nutria, raccoon, rabbit, opossum, skunk, muskrat — All present throughout the marsh and beach areas. Nutria (large South American rodents introduced to Texas) are common in the marsh channels and occasionally spotted from the boardwalk.
Roseate spoonbills — The pink wading bird that’s become a symbol of the upper Texas coast. Common in the marsh shallows. The combination of alligators, spoonbills, and blue crabs visible from a single kayak in the Sea Rim marsh is a quintessential SETX outdoor experience.
The Wild Southeast Texas Wildlife Coloring Book covers several of the animals your kids will encounter at Sea Rim — alligators, herons, egrets, roseate spoonbills, and more. Good for camp downtime and the drive home.
What to Pack
Sea Rim’s Gulf Coast marsh setting requires specific attention to a few items:
DEET or Picaridin insect repellent — The marsh environment produces severe mosquito pressure, particularly after dark and near the water. The park’s own materials warn about heavy mosquito infestation. Apply before dusk every evening without exception. See our complete insect repellent guide for what actually works in these conditions.
Thermacell — For campsite perimeter protection during evening hours. The combination of Thermacell at camp plus topical Picaridin when moving around is the strategy that makes a Sea Rim evening bearable rather than miserable.
Sun protection — The beach is completely exposed. SPF 50+ sunscreen, a hat with a brim, and a long-sleeve UPF sun shirt for midday hours.
Shade structure — No trees on the beach or in the Piping Plover loop. A pop-up canopy keeps your campsite livable during afternoon hours and your cooler significantly colder.
Sand stakes — Standard tent stakes sink in beach sand. Sand-specific stakes or anchors are required for canopy and tent stability on the West Beach.
Quality cooler — Direct Gulf sun plus heat equals fast ice melt. See our best camping coolers for Texas heat for what actually holds ice in these conditions.
Life jackets — Required for children under 13 on the water. Strongly recommended for all paddlers on the marsh trails.
Best Time to Camp at Sea Rim
Fall (October–November): The best window by a significant margin. The brutal summer humidity breaks, mosquitoes thin significantly, Monarch butterflies are migrating through, fall shorebird and waterfowl migration peaks, and the beach empties of summer crowds. October mornings at Sea Rim with a cup of coffee and binoculars on the Gambusia boardwalk are among the best wildlife experiences in SETX.
Winter (December–February): The quietest time. Almost no crowds, the best beach conditions of the year for shell collecting and fishing, and waterfowl in the marsh at their peak numbers. Bring cold-weather gear — Gulf winds make winter temperatures feel significantly colder than the thermometer reads. The park’s own materials cite December through March as the recommended visiting period per AllTrails user consensus.
Spring (April–May): Spring migration makes this the best birding window. Warblers and other neotropical migrants coming off the Gulf drop into the marsh and dune vegetation. April mornings on the Gambusia boardwalk during a migration fallout are unforgettable.
Summer (June–September): The most challenging window — heat, humidity, and mosquitoes are all at their peak simultaneously. The primitive beach camping is beautiful if you can manage the conditions. Hurricane season runs June–November — monitor the National Hurricane Center before any Gulf Coast camping trip.
Nearby Attractions
Sabine Pass Battleground State Historic Site: About 2 miles from the park. One of the most remarkable small battles of the Civil War — in September 1863, a Confederate force of 47 men under Lieutenant Richard Dowling held off a Union naval assault of 5,000 men and 4 gunboats, capturing 2 gunboats and 350 prisoners without a single Confederate casualty. Free to visit, worth a stop on any Sea Rim trip.
McFaddin National Wildlife Refuge: Directly adjacent to the park’s marsh system. The refuge and the park function as a single ecological unit — the marsh doesn’t stop at the park boundary. McFaddin is open for wildlife viewing, photography, and hunting in season.
Museum of the Gulf Coast (Port Arthur): 22 miles north. Covers the history, culture, and natural history of the Texas Gulf Coast region. One of the better regional museums in SETX.
FAQ
Is Sea Rim State Park good for families?
Yes, with age-appropriate expectations. The Gambusia Marsh boardwalk is excellent for young children — short, easy, full of wildlife, educational. The beach is wide and safe for kids with adult supervision. The mosquitoes after dark are significant — bring repellent and a Thermacell. For families who want developed amenities like playgrounds and screened shelters, Lake Livingston State Park or Brazos Bend State Park are better fits.
Are there alligators at Sea Rim State Park?
Yes. Alligators are present throughout the marsh system at Sea Rim. Maintain 30-foot distance, never feed, and keep children and pets away from the water’s edge and marsh channels.
Can you swim at Sea Rim State Park?
Swimming is allowed in designated areas of the Gulf beach. No lifeguards are on duty — swim at your own risk and be aware of rip currents. Always swim near others, never alone.
Do I need a fishing license at Sea Rim?
No fishing license is required for shore fishing at a Texas state park. A license is required for boat or kayak fishing on the marsh or in the Gulf.
Is the floating campsite at Sea Rim open?
No. The floating primitive campsite has been closed for repairs since December 2023 with no announced reopening date as of this writing. Monitor tpwd.texas.gov/state-parks/sea-rim for updates.
How far is Sea Rim State Park from Houston?
Approximately 90 minutes from the Houston metro via I-10 East to Beaumont, then US-287 South to Port Arthur, then TX-87 South to Sabine Pass.
What is the Gambusia Nature Trail at Sea Rim State Park?
An elevated boardwalk trail through the coastal marsh directly behind the beach. Interpretive signs explain the marsh ecosystem. The trail is the best birding spot in the park and one of the most accessible coastal marsh experiences in Southeast Texas. Prone to flooding after heavy rain — confirm it’s open before your visit.
Sea Rim is the SETX Gulf Coast camping experience that feels the least like anything else in the region. The marsh behind the beach isn’t just scenery — it’s an active ecosystem that functions as a resting and refueling station for millions of birds moving through the Central Flyway every year. The Gambusia boardwalk at dawn during spring migration is the kind of thing that turns a casual camper into a birder.
For the complete Gulf Coast camping picture — including Bolivar Peninsula and Galveston Island State Park — see our Gulf Coast Texas camping guide. For more SETX destinations, our best campgrounds in Southeast Texas covers every significant campground in the region.
Before your trip, grab the free Ultimate Family Camping Checklist — 83 items across 7 categories, built for camping in Southeast Texas.
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