What You'll Find at Goose Island State Park
Goose Island State Park sits on the upper Texas coast near Rockport, about 30 miles northeast of Corpus Christi. The park occupies a narrow barrier island between San Antonio Bay and the Gulf of Mexico, giving you access to both bay flats and nearshore Gulf water. Most visiting anglers fish the bay side — shallow, grassy flats that hold redfish and spotted seatrout year-round, with flounder and Spanish mackerel showing up seasonally.
The park itself is small, roughly 43 acres, with a boat launch, pier, and camping. The real draw is the water around it. San Antonio Bay is a classic Texas estuary: clear to murky depending on recent rain, with seagrass beds, oyster reefs, and sand flats. Redfish here run 18 to 30 inches on average, and seatrout are plentiful in fall and winter. The Gulf side offers deeper structure and larger fish, but the bay is where most anglers spend their time.
Key Takeaways
- Redfish and spotted seatrout are the primary target species, with best fishing from October through April when water cools and fish move into the shallows.
- The park has a boat launch and fishing pier, but you will need your own boat to reach the productive flats; wade fishing is possible but limited to areas near the launch.
- Shallow-water flats fishing requires a skiff or kayak that draws minimal water, since much of San Antonio Bay is 2 to 4 feet deep.
- Texas saltwater fishing requires a saltwater fishing license, and redfish are subject to a one-fish daily bag limit with a 18-inch minimum size.
- The park has limited camping and fills quickly on weekends during fall and winter, so plan ahead if you want to stay overnight.
Best Seasons and What to Expect
Fall and winter — October through March — is prime time. Water temperatures drop into the 60s and 70s, and redfish and seatrout move into shallow flats to feed. Redfish are most active on incoming tides, especially around dawn and dusk. Seatrout bite throughout the day but concentrate near deeper channels and drop-offs where they can retreat if spooked. Winter can be cold and windy, but the fishing is often excellent.
Spring and summer are slower. Water warms, fish disperse into deeper bay and Gulf water, and the flats become less productive. Tarpon move through in late spring and early summer if you want to target something different, but they are not reliable. Summer heat and afternoon thunderstorms make the experience less pleasant anyway.
Tides matter more than anywhere else on the Texas coast. San Antonio Bay has a small tidal range — usually 1 to 2 feet — but the movement concentrates fish. Fish the last two hours of incoming tide and the first two hours of the outgoing tide. Slack water (the hour around high and low tide) is typically slow.
Access, Facilities, and Regulations
The park entrance is on State Road 35, about 10 miles south of Rockport. There is a day-use fee (currently around $5 per vehicle) and a camping fee if you stay overnight. The boat launch is concrete and well-maintained, with parking for trailers. A fishing pier extends into the bay and is open to the public; it is a good option if you do not have a boat, though the pier itself is not as productive as the flats.
Camping is available year-round with about 20 sites, most with water and electric hookups. Sites fill quickly during fall and winter weekends, so reserve ahead through the Texas Parks and Wildlife Department website. The park has restrooms, showers, and a small store with basic supplies.
You must have a Texas saltwater fishing license. Redfish are limited to one fish per day with an 18-inch minimum size. Spotted seatrout have a five-fish daily limit with a 12-inch minimum. Flounder are limited to five fish at 14 inches. Check current regulations with Texas Parks and Wildlife before you go, as rules change.
Tactics for Redfish and Seatrout on the Flats
Redfish on the flats respond to sight-casting with topwater plugs, soft plastics, and live bait. Poling or drifting quietly over grassy areas, you will often see redfish tailing or cruising in 2 to 4 feet of water. Cast ahead of the fish and retrieve slowly. Topwater plugs like MirrOlures and Skitter Walks work well in early morning and late afternoon. Soft plastics — 4-inch paddle-tail shads in natural colors — are reliable all day and less spooky than topwater.
Seatrout prefer slightly deeper water and are less sight-dependent than redfish. Fish the edges of channels, drop-offs, and grass lines with soft plastics or live shrimp. Seatrout bite aggressively but have soft mouths, so use light tackle and set the hook gently. They are most active in fall and winter mornings.
Live bait — mullet, shrimp, or small pinfish — works for both species and is often the most reliable approach if you are new to the flats. Cast near structure, keep your line tight, and wait. Bait fishing is less technical than artificial lures but requires patience and good tide timing.
What Boat and Gear You Need
A shallow-draft skiff or flats boat is ideal. The flats around Goose Island are 2 to 4 feet deep, and many productive areas are shallower. A boat that draws less than 12 inches is best. Kayaks work well for wade fishing and exploring shallow areas, though they limit your range.
Rod and reel: a 7-foot medium-light spinning rod with 15- to 20-pound braided line is standard for redfish and seatrout. Braided line casts farther and gives better sensitivity in shallow water. A 12-pound fluorocarbon leader reduces visibility. Bring two rods — one rigged with topwater, one with soft plastics.
Wading boots or water shoes are essential; the bottom is soft mud and oyster shells. A push pole or trolling motor helps you move quietly over the flats. Polarized sunglasses are not optional — you need them to see fish in shallow water.
Nearby Lodging and Services
Rockport, 10 miles north, has motels, restaurants, and tackle shops. The Rockport-Fulton area is a working fishing community with several charter boat captains if you want a guided trip instead of going solo. Tackle shops like Rockport Tackle and Fins can provide current conditions, bait, and local advice.
If you camp at the park, bring your own food or plan to drive to Rockport for supplies. The park store is minimal. Fuel is available in Rockport and at marinas nearby.
Common Mistakes and How to Avoid Them
Fishing too fast is the most common error. Redfish and seatrout in shallow water are easily spooked. Move slowly, cast ahead of the fish, and retrieve deliberately. Rushing your presentation will empty the flats.
Ignoring the tide is another. Fish the moving water, not slack tide. Check tide tables before you leave — many apps and websites show San Antonio Bay tides specifically.
Underestimating how shallow the water is will ground you. Know your boat's draft and stay in marked channels if you are unfamiliar with the area. A GPS with a good map layer helps, but local knowledge is better. Talk to other anglers at the launch or hire a guide for your first trip.
Frequently Asked Questions
Can I fish from the pier without a boat?
Yes. The park pier is open to the public and does not require a boat. You will catch redfish, seatrout, and flounder from the pier, especially during fall and winter. The pier is less productive than the flats, but it is a solid option if you do not have access to a boat or want a simpler outing.
What is the best time of day to fish?
Early morning (sunrise to 9 a.m.) and late afternoon (3 p.m. to sunset) are most productive. Redfish are most active during these windows. Seatrout bite throughout the day but concentrate near structure. Midday can be slow, especially in summer.
Do I need a guide?
Not required, but a guide is valuable if you are new to flats fishing or unfamiliar with San Antonio Bay. Guides know where fish are holding, how to read the water, and how to approach without spooking them. Half-day guided trips run $300 to $500 and can accelerate your learning curve.
What happens if I catch a redfish over the size limit?
Redfish are limited to one fish per day at 18 inches minimum. If you catch a larger fish, you can keep it as your one fish, or release it. There is no upper size limit, so a 35-inch redfish is legal to keep if it is your only fish for the day.
Is the park crowded?
Yes, on weekends during fall and winter. The park is small and popular. Weekday mornings are quieter. If you want solitude, fish early in the week or during summer (though fishing is slower then). Camping fills quickly, so reserve well ahead.