Louisiana · Southeast Louisiana
FLOUNDER FISHING
IN GRAND ISLE
Grand Isle is a solid destination for flounder fishing, with peak season in October and good catches in March, April, May. Book a charter and target flounder with local experts.
About Flounder Fishing in Grand Isle
A prized flatfish found along sandy bottoms and structure. Excellent table fare and fun to catch on light tackle.
Flounder are unique flatfish that lie camouflaged on sandy or muddy bottoms, ambushing prey from below. Gulf flounder and Southern flounder are the primary species in southern waters, while Summer Flounder (fluke) dominates from the Carolinas northward. Both eyes migrate to the top (left) side as juveniles, creating their distinctive flat profile. The "eyed" side is brown-green with irregular spots and blotches that change to match the surrounding bottom — a remarkable camouflage ability.
Scientific name: Paralichthys albiguttata
Flounder Seasonal Calendar — Grand Isle
Month-by-month availability for flounder in Grand Isle, LA.
How to Catch Flounder in Grand Isle
Techniques & Bait
Drifting live bull minnows (finger mullet or mud minnows) on a Carolina rig or knocker rig along sandy channel edges and drop-offs is the most productive method. Bounce a 1/4-3/8 oz jighead with a live minnow or Gulp! swimming mullet along the bottom near structure transitions (sand to mud, channel edges). "Flounder gigging" at night with underwater lights is popular in shallow bays. In passes and inlets, fishing the outgoing tide with live bait near the bottom produces the largest fish.
Recommended Tackle
Medium-light spinning rod (7 ft), 2500 reel, 10-15 lb braid, 20 lb fluorocarbon leader, 1/4-1/2 oz jig heads or Carolina rig with 1/0-3/0 wide-gap hooks. Patience is key — flounder often mouth the bait before committing, so wait for the second thump before setting the hook.
Best Inshore Fishing Spots in Grand Isle
Top spots where local captains target flounder and other inshore species.
Caminada Bay
Caminada Bay lies between Grand Isle and the mainland, with productive oyster reefs, marsh shorelines, and grass flats holding redfish, speckled trout, flounder, and sheepshead. The bay's shallow waters warm quickly in spring, kicking off excellent trout fishing earlier than deeper inshore areas. The bay is easily accessible from Grand Isle's north-side launches.
Barataria Pass
Barataria Pass is the tidal inlet connecting Barataria Bay to the Gulf of Mexico at the eastern end of Grand Isle. Strong currents funnel massive volumes of baitfish through the pass, attracting tarpon, redfish, cobia, jack crevalle, and Spanish mackerel. The pass's rock jetties provide accessible shore fishing and produce consistent catches on every tide change.
Barataria Bay
Barataria Bay is a sprawling estuary north of Grand Isle that encompasses thousands of acres of marsh, bayous, and open water teeming with redfish and speckled trout. The bay's nutrient-rich waters from the Mississippi River basin support an incredibly productive food chain. Trout limits are common on the bay's shell reefs and marsh points during spring and fall.
Bayou Rigaud
Bayou Rigaud runs along the north side of Grand Isle, connecting the island's interior waterways to Caminada Bay. Redfish, flounder, sheepshead, and drum hold around the bayou's bridges, docks, and oyster shell points. The bayou provides quick and easy inshore fishing access for anglers staying on Grand Isle without needing to run to distant marsh areas.
Other Species in Grand Isle
More fish you can target while visiting Grand Isle.
Flounder Fishing in Grand Isle — FAQ
The peak months for Flounder fishing in Grand Isle are October. During these months, Flounder are most active and abundant in the Grand Isle area.
Flounder fishing charters in Grand Isle are typically inshore trips. Prices vary by trip duration and group size. Most charters include all gear, bait, licenses, and fish cleaning.
Drifting live bull minnows (finger mullet or mud minnows) on a Carolina rig or knocker rig along sandy channel edges and drop-offs is the most productive method. Bounce a 1/4-3/8 oz jighead with a live minnow or Gulp! swimming mullet along the bottom near structure transitions (sand to mud, channel edges). "Flounder gigging" at night with underwater lights is popular in shallow bays. In passes and inlets, fishing the outgoing tide with live bait near the bottom produces the largest fish.
No — when you book a charter in Grand Isle, your captain provides all required Louisiana fishing licenses as part of the trip.
Flounder regulations in Louisiana include minimum size limits and bag limits that vary by season. Your captain will know the current regulations and ensure compliance.
While targeting Flounder in Grand Isle, you may also catch Redfish, Speckled Trout, Sheepshead, Black Drum, Vermilion Snapper. Many charter trips target multiple species for the best action.
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