What Billy Goat Hole is and where to find it

Billy Goat Hole is a shallow flat and slight depression in the bay bottom about two miles northeast of Dauphin Island's eastern tip, sitting roughly between the island and the mainland in upper Mobile Bay. The hole itself is only 4 to 6 feet deep at high tide, surrounded by even shallower flats that run 2 to 3 feet. It's named for the rocky, shell-studded bottom that resembles goat terrain more than the soft mud typical of most bay flats.

The spot is accessible by boat from Dauphin Island's public launch at Bienville Boulevard or from the Dauphin Island Yacht Club if you have access. The run takes 15 to 20 minutes depending on your boat speed and the tide. GPS coordinates place it around 30.2500° N, 88.1200° W, though the productive zone spreads across a quarter-mile radius. Most anglers use a shallow-draft skiff or flats boat to reach it, especially at low tide when the surrounding flats drop to 18 inches or less.

Key Takeaways

  • Billy Goat Hole holds redfish year-round, with the best fishing from April through October when water temperatures stay above 65 degrees.
  • The rocky, shell-covered bottom makes it different from surrounding mud flats and attracts baitfish that redfish hunt in shallow water.
  • Incoming tide pushes fish onto the flats; outgoing tide concentrates them in the slight depression of the hole itself.
  • Sight-casting with topwater plugs or soft plastics works best in clear water, while blind casting with spoons covers more ground when visibility drops.

Redfish behavior and seasonal patterns

Redfish use Billy Goat Hole as a feeding ground and staging area between deeper bay channels and the shallow flats. The rocky bottom holds small crustaceans and baitfish that redfish root through, especially mullet and silversides. On incoming tides, fish move up onto the surrounding 2-foot flats to feed; on the drop, they slide back into the hole where the extra depth gives them security.

Spring and fall are peak seasons. April through June, redfish move shallow to spawn and feed heavily before summer heat pushes them toward deeper channels. September through November, cooling water and migrating mullet bring fish back to the flats. Summer fishing is possible but slower—fish are present but less aggressive, and the heat makes sight-casting harder. Winter is slowest; redfish move to deeper holes in the bay, though a warm day after a cold snap can trigger a brief bite.

Tides and water conditions

Tide is the single biggest factor at Billy Goat Hole. The Mobile Bay tidal range is 1 to 2 feet, which sounds small but makes the difference between fishable water and exposed flats. An incoming tide starting two hours before high slack is ideal—fish move shallow and feed actively. The last hour of the incoming and the first hour of the outgoing are usually most productive.

Water clarity changes with wind and recent rain. After a calm week with no rain, visibility can reach 3 to 4 feet, making sight-casting possible. After heavy rain or a strong south wind pushing bay water in from the Gulf, visibility drops to 12 inches or less. In clear water, redfish spook easily from boat noise and shadows; in stained water, they're less cautious but harder to locate. Check the Mobile Bay forecast and recent rainfall before you go; a day with light wind and stable weather is worth the trip.

Tackle and technique for shallow flats

Redfish at Billy Goat Hole respond to topwater plugs, soft plastics, and spoons. Topwater plugs like Skitter Walks or Spooks work best in clear water when you can see fish cruising the flats—cast ahead of them and work the plug with short jerks. Soft plastics rigged on 1/8-ounce jigheads let you fish slower and feel the rocky bottom; 4-inch paddle-tail shads and shrimp imitations are standard choices. Spoons cast well into wind and cover water fast when you're blind casting in stained conditions.

Use a 6- to 7-foot medium-light spinning rod with 15- to 20-pound braided line. Braid cuts through the rocky bottom and gives you better feel for structure. Add a 12- to 18-inch fluorocarbon leader to reduce visibility in clear water. Keep your boat positioned uptide and cast downtide so your retrieve brings the lure toward deeper water—the direction redfish naturally move when feeding. Pole or use a trolling motor in shallow water; a loud outboard will shut down the bite for 20 minutes or more.

Navigating the shallow water safely

Billy Goat Hole sits in water shallow enough to strand you if you're not careful. At low tide, the surrounding flats drop to 18 inches; the hole itself stays 3 to 4 feet, but the margin is narrow. Use a GPS plotter loaded with a detailed bathymetric map of Mobile Bay—Navionics and Garmin both offer bay-specific charts. Mark the hole's center and the deepest approach channel before you arrive.

Pole or use a trolling motor exclusively once you're in the area. Watch for oyster beds and shell bars that don't show on every chart; they're a hazard to the prop and can tear a hull. If you run aground, don't gun the engine—you'll bury the prop in mud or shell. Shut off, pole off, or use a push pole to back out. Carry a shallow-water anchor or a stake pole so you can hold position without drifting into skinny water.

Bait and forage species

The rocky bottom at Billy Goat Hole concentrates small mullet, silversides, and grass shrimp that redfish hunt. Live mullet work if you can keep them alive in the heat, but artificial lures are more practical and less messy. The forage base shifts with season—spring and early summer favor small mullet and shrimp; late summer and fall bring larger mullet migrations that attract bigger redfish.

If you want to throw live bait, use a 1/0 to 2/0 circle hook and fish it on a light jighead or unweighted under a small popping cork. Let the bait work naturally rather than stripping it; redfish in shallow water often follow a bait before striking, and constant movement can spook them. Artificial lures give you more control and let you cover water faster, which is why most flats anglers prefer them at this spot.

Nearby alternatives if Billy Goat Hole is crowded or slow

If Billy Goat Hole is packed or the bite is off, the surrounding flats hold redfish too. The area west toward Dauphin Island's north shore has similar rocky bottom and slightly deeper water (4 to 5 feet) that holds fish when the main hole is too shallow. The channel between Dauphin Island and the mainland, called the Dauphin Island Pass approach, runs 6 to 8 feet and concentrates redfish during tide changes.

Cedar Point, about three miles north, is another shallow flat with redfish and a different bottom composition—softer mud with scattered shell. It fishes best on the same tides as Billy Goat Hole but draws fewer boats. If you're new to the area, scout these spots on a calm day when you can see the bottom and get a feel for the structure before you commit to a fishing trip.

Frequently Asked Questions

What's the best time of day to fish Billy Goat Hole?

Tide matters more than time of day. Fish the incoming tide regardless of whether it's morning or afternoon—that's when redfish move shallow to feed. If the incoming tide runs from 10 a.m. to 1 p.m., fish those hours. If it runs from 4 p.m. to 7 p.m., fish then instead. Early morning and late afternoon are easier on your eyes for sight-casting, but a midday incoming tide will outfish a calm dawn with the wrong tide.

Can I wade Billy Goat Hole?

You can wade the surrounding flats in water 2 to 3 feet deep, but the hole itself is deeper and better fished from a boat. Wading works if you're sight-casting on a clear, calm day and don't mind moving slowly. Wear polarized sunglasses and watch for oyster beds. Most anglers find a shallow-draft boat more productive because it lets you cover more water and reposition quickly as the tide changes.

Do I need a guide to fish Billy Goat Hole?

No, but a guide is helpful your first time. The spot is small, the approach channels are shallow, and running aground is easy if you don't know the water. A local guide can show you the exact marks, teach you how to read the tide, and help you avoid hazards. After one trip with a guide, most anglers can return on their own with a good GPS chart and a careful approach.

What size redfish does Billy Goat Hole typically hold?

Most redfish run 16 to 24 inches, with some pushing 28 inches. Slot-sized fish (18 to 27 inches) are common. Larger redfish (30+ inches) are less frequent but do show up, especially in fall. The shallow water and rocky bottom attract feeding fish of all sizes, but the spot is known for consistent numbers of keeper-sized redfish rather than trophy fish.

Is Billy Goat Hole good for beginners?

It's a good intermediate spot. The redfish are there year-round, and the shallow water makes sight-casting possible on clear days. The downside is navigation—you need to respect the shallow water and use a GPS chart carefully. If you're new to flats fishing, practice boat handling in deeper water first, then bring a guide or an experienced angler on your first trip to Billy Goat Hole.