What Round Island Offers Anglers

Round Island sits in the Pascagoula River estuary near Pascagoula, Mississippi, and holds redfish, spotted seatrout, and flounder in shallow flats and deeper channels. The island itself is a small, mangrove-fringed piece of land that creates structure fish use year-round, but the real fishing happens in the water around it—not on the island. Most anglers fish the flats to the east and south of the island where the river widens into the estuary, and the channels that run past it on both sides.

The appeal here is access to both sight-fishing and blind-casting depending on tide and season. On clear, low-water days you can spot redfish tailing in the shallows. When the tide pushes in or the water clouds up, you work the deeper edges and channel drops where seatrout and larger reds hold. The island also breaks the current and creates slack-water pockets where fish rest between tidal pushes.

Key Takeaways

  • Round Island is best fished from a shallow-draft boat or kayak because the surrounding flats run 2 to 4 feet deep at high tide and much shallower at low water.
  • Redfish and spotted seatrout are the primary targets, with flounder available in deeper channels and along the island's edges during fall and winter.
  • Early morning and the two hours around slack tide produce the most consistent bites because fish are less spooky and feeding actively.
  • The area is open to public fishing, but you must respect private property on nearby shorelines and follow Mississippi saltwater regulations for size and bag limits.

Tides, Seasons, and Water Conditions

The Pascagoula estuary runs on a semi-diurnal tide—two highs and two lows per day—with a range of 2 to 3 feet depending on moon phase and weather. Round Island fishes best on the falling tide and the first hour of the rising tide, when water movement concentrates fish along the deeper edges. Dead slack water, right at the turn, can be productive for sight-fishing because the water clears and fish move into the shallows to feed.

Spring and early summer (April through June) bring the most reliable redfish action, especially on the flats east of the island where spawning fish move shallow. Summer heat pushes fish deeper into channels by mid-July, and you'll need to fish the 6- to 8-foot holes around the island's perimeter. Fall (September through November) is excellent for seatrout and flounder as water cools and fish move back into the shallows. Winter fishing is possible but slower; fish bunch up in the deepest channels and require patience.

Salinity varies with rainfall and river flow. After heavy rain, freshwater pushes the salt line downriver and fish move with it—sometimes miles away from Round Island. Dry spells concentrate fish in the estuary because the water stays brackish and stable. Check the Pascagoula River gauge before you go; flows above 15,000 cubic feet per second usually mean the fishing will be tough for a few days.

Tackle and Technique for Round Island Flats

A 7- to 8-foot medium-light spinning rod with 15- to 20-pound braid handles the shallow water and occasional snags around mangroves. Redfish and seatrout in this system rarely exceed 6 pounds, so you don't need heavy gear, but braid cuts through the grass and mud better than monofilament. A 12- to 16-pound fluorocarbon leader (24 to 30 inches) keeps the line invisible to spooky fish in clear water.

Soft plastics work best: 3- to 4-inch paddle-tail shrimp in natural colors (tan, pearl, chartreuse) cast along the island's edges and worked slowly across the flats. Topwater plugs produce strikes in early morning and at dusk, especially when the water is calm. Live shrimp under a popping cork works for seatrout in deeper water, and small jigs (1/8 to 1/4 ounce) tipped with shrimp catch flounder in the channels. Cast ahead of moving fish rather than at them; redfish spook easily in shallow water.

Sight-fishing requires polarized sunglasses and patience. Position your boat upwind or upcurrent of where you expect fish, then scan the flats for the dark shape of a redfish or the nervous water movement that signals feeding. Strip the lure slowly—redfish in the estuary are not aggressive and often follow before committing. If a fish follows and doesn't bite, leave it alone for 10 minutes and come back to it.

Getting There and Launching

Round Island lies roughly 4 miles south of downtown Pascagoula, accessible by boat only. The nearest public launch is at Pascagoula River Park on River Road in Pascagoula, a small concrete ramp with limited parking. From there, head south on the river and follow the main channel markers; the island is clearly visible once you reach the wider estuary. The run takes 15 to 20 minutes in a center-console or flats boat.

Kayakers can launch at the same ramp or at smaller access points along River Road, though the current and occasional barge traffic make the main channel less ideal for paddling. A kayak works well for fishing the shallower flats on either side of the island, but stay aware of tidal flow and plan your route so you're not fighting the current on the way back.

There is no fuel, food, or facilities at Round Island itself. Bring fresh water, sunscreen, and a hat. The sun reflects hard off the water and the flats offer no shade. Cell service is spotty in the estuary, so file a float plan with someone ashore.

Regulations and What to Know Before You Go

Mississippi requires a saltwater fishing license for anyone 16 and older. You can purchase a three-day, seven-day, or annual license through the Mississippi Department of Marine Resources website or at tackle shops in Pascagoula. Redfish have a 18-inch minimum and 2-fish daily bag limit. Spotted seatrout must be 12 inches or longer with a 15-fish daily limit. Flounder have a 12-inch minimum and 10-fish daily limit. These rules change occasionally, so check the current regulations before you fish.

The island itself is private property, but the water around it is public. Do not land on the island or approach the mangroves closely enough to disturb nesting birds. Respect posted signs on nearby shorelines. The area sees commercial barge traffic, especially in the main channel; stay alert and keep to the shallows where barges cannot go.

When Round Island Fishes Poorly

Heavy rain and high river flow push fish out of the estuary and into deeper Gulf water. If the Pascagoula gauge reads above 20,000 cubic feet per second, the fishing will be slow for several days. Extreme heat in July and August can shut down the flats; fish move to the deepest channels and stop feeding during midday. Tropical storms and nor'easters churn the water and scatter fish, though the bite often improves in the days after the system passes.

Algae blooms, though rare, can make the water murky and reduce visibility for sight-fishing. Winter cold snaps slow the bite significantly. If conditions are poor at Round Island, consider running to the deeper channels near Bayou Casotte or the mouth of the Pascagoula River where fish concentrate in winter.

Frequently Asked Questions

Can I fish Round Island from shore?

No. The island is surrounded by private property and mangroves, and there is no public shoreline access. You must fish from a boat or kayak in the water around the island.

What is the best time of day to fish here?

Early morning (first two hours after sunrise) and the hour before sunset produce the most consistent bites. Midday fishing is slower, especially in summer. Fish also feed actively during the slack-water period at the turn of the tide, regardless of time of day.

Do I need a guide to fish Round Island?

No, but the area is straightforward to navigate and fish on your own if you have a shallow-draft boat and basic saltwater skills. Guides are available in Pascagoula if you want local knowledge or prefer not to run the boat yourself.

What happens if the water is too shallow to reach the island?

At very low tide, the flats around Round Island can drop to 1 foot or less. A kayak or poling skiff can fish these conditions; a center-console may need to wait for the tide to rise. Plan your trip around the tide chart so you arrive when water levels are rising or near high tide.

Are there other fish species at Round Island?

Occasional Spanish mackerel, ladyfish, and mullet move through the area, especially in summer. Catfish and sheepshead are present but not the primary target. The focus here is redfish and seatrout.