What You'll Find at Sebastian Inlet

Sebastian Inlet State Park sits where the Indian River Lagoon meets the Atlantic Ocean, about 20 miles south of Melbourne. The park gives you three distinct fishing zones: the north and south jetties that jut into the inlet itself, the shallow lagoon flats behind the barrier island, and direct access to offshore structure. The inlet is a natural funnel for fish moving between the lagoon and the ocean, which means you can catch redfish, snook, and tarpon in the same tide that holds Spanish mackerel and kingfish in the deeper water.

The park charges a vehicle entrance fee and operates year-round. Parking fills quickly on weekends and during the spring tarpon run (April through June), so arrive early if you plan to fish the jetties. The south jetty is the more popular spot and tends to be more crowded, but it also holds more fish during incoming tides. The north jetty is rockier, less trafficked, and better for sight-casting to redfish in the shallows on the lagoon side.

Key Takeaways

  • The inlet jetties hold redfish, snook, and tarpon year-round, with tarpon most abundant April through June and Spanish mackerel and kingfish in the deeper channels during summer.
  • Incoming tides push baitfish and gamefish through the inlet, making the two hours before and after high tide the most productive window on the jetties.
  • The lagoon flats behind the park hold redfish and permit in water two to four feet deep, especially along the grass edges and near the mangrove shoreline.
  • Boat anglers can reach offshore reefs and wrecks within 10 to 15 miles, where grouper, snapper, and larger kingfish hold year-round.
  • The park has a boat ramp, but launching during peak times requires patience; wade fishing the jetties requires no boat and is often more productive than drifting.

Jetty Fishing for Inlet Species

The jetties are the park's signature fishery. Both the north and south jetties are accessible on foot and require no boat. The south jetty is longer and more exposed to the open ocean, which means it gets more current and attracts larger Spanish mackerel and kingfish, especially in summer. The north jetty is shorter and sits more in the inlet proper, making it better for redfish and snook that hunt in the slower water near the rocks.

Fish the jetties on an incoming tide, when baitfish get pushed through the inlet and gamefish position themselves to intercept them. The hour before high tide and the first two hours after high tide are usually most productive. Bring light to medium spinning tackle (6 to 8 pounds) for redfish and snook, and heavier gear (12 to 20 pounds) if you expect kingfish or large tarpon. Live mullet, pilchards, or shiners work well; if the bite is slow, try small jigs or topwater plugs along the rocks at dawn or dusk.

The jetties can be slippery and the current strong, especially on an incoming tide. Wear shoes with good grip, keep your footing, and watch for waves. The rocks are sharp and the water is deep on both sides of the jetties, so stay alert and fish with a partner when possible.

Lagoon Flats and Mangrove Edges

The shallow water behind the barrier island—the Indian River Lagoon side of the park—holds redfish and permit in two to four feet of water. This is sight-casting water. Redfish cruise the grass flats and hunt along the mangrove shoreline, especially on a rising tide when they move into the shallows to feed. Permit are less common but show up in spring and fall, usually in small groups over sand patches near the deeper channels.

Wade the flats with polarized sunglasses and a 7 to 8-foot medium-light spinning rod. Cast small jigs (1/8 to 1/4 ounce) or soft plastics ahead of cruising fish and let them sink slowly. Redfish will eat a well-presented lure even in clear water if you don't spook them first. Move slowly, keep your shadow off the water, and fish the edges where grass meets sand or where mangrove roots meet open water. Early morning and late afternoon are best; midday sun makes the fish harder to see and less aggressive.

Boat Access and Offshore Structure

The park has a public boat ramp on the lagoon side, though it gets congested on weekends. If you have a boat, you can reach offshore reefs and wrecks 10 to 15 miles east of the inlet. Grouper, snapper, and larger kingfish hold on these structures year-round. Summer brings Spanish mackerel and bonito in the shallower water (40 to 60 feet), while fall and winter push larger kingfish and permit into the same zones.

The inlet itself is navigable but has a strong current and can be rough on an outgoing tide with an ocean swell. Enter and exit on a slack or incoming tide if you're new to the area. Local tackle shops near the park can provide GPS coordinates for productive wrecks and reefs, and many offer charter trips if you want to learn the area before going on your own.

Seasonal Patterns and What to Expect

Spring (March through May) brings the tarpon run. Large tarpon move through the inlet on their way north, and you'll see them rolling in the deeper channels and around the jetties. This is sight-casting water if you're skilled with a fly rod or heavy spinning tackle; expect long runs and acrobatic jumps. The jetties are crowded during this season, and many anglers specifically target tarpon with live mullet or large shiners.

Summer (June through August) shifts the focus to Spanish mackerel and kingfish in the deeper inlet channels and offshore. Redfish remain active on the flats, but the heat pushes them deeper and into the mangroves during midday. Early morning and late afternoon are essential. Snook bite well at night around the jetties and mangrove edges.

Fall (September through November) brings permit back to the flats and cools the water enough that redfish and snook are active throughout the day. Offshore, grouper and snapper bite well as the water temperature drops. This is often the most consistent season for a mix of species.

Winter (December through February) is mild in central Florida, and the inlet remains productive. Redfish and snook are active, and offshore structure holds grouper and snapper. The water is clearer, which makes sight-casting easier but also makes fish more wary. Tarpon are gone, and Spanish mackerel move south, but the overall bite is steady.

Tackle, Bait, and Gear Recommendations

For jetty fishing, bring two rods: one light to medium (6 to 8 pounds) for redfish and snook, and one heavier (12 to 20 pounds) for kingfish and tarpon. Spool with braided line for better sensitivity and casting distance. Bring live bait (mullet, pilchards, shiners) in a small cooler with an aerator, or tie on small jigs and soft plastics if you prefer artificial lures.

For flats fishing, a 7 to 8-foot medium-light spinning rod with 8 to 10-pound monofilament or fluorocarbon is ideal. Polarized sunglasses are essential—you won't see fish without them. Bring a small tackle box with jigs, soft plastics, and a few topwater plugs. Wear light-colored clothing and avoid sudden movements.

For boat fishing, check the park's website or call ahead for current conditions and any closures. Bring a GPS unit or download offline maps of the inlet and nearby structure. A depth finder helps you locate wrecks and reefs quickly. Bring plenty of water, sunscreen, and a first-aid kit.

Park Facilities and Practical Details

Sebastian Inlet State Park has a parking area near the jetties, a boat ramp, picnic tables, and restrooms. There is no bait shop inside the park, so bring your own or stop at a tackle shop in Melbourne before you arrive. The park is open sunrise to sunset, and the entrance fee is charged per vehicle. The park does not allow overnight camping, though there are campgrounds nearby.

The inlet can be rough, especially on an outgoing tide with an ocean swell. Check the weather and tide forecast before you go. The current is strong, and the water is deep, so wear a life jacket if you're wading near the jetty edges or launching a boat. The rocks are sharp and slippery; wear shoes with good grip.

Frequently Asked Questions

What's the best time of day to fish the jetties?

Fish the two hours before and after high tide, when the current pushes baitfish through the inlet and gamefish position themselves to feed. Early morning (one hour before sunrise to two hours after) and late afternoon (two hours before sunset to one hour after) are also productive, especially for snook and tarpon. Midday is usually slower unless you're targeting Spanish mackerel in the deeper channels.

Do I need a boat to fish Sebastian Inlet?

No. The jetties are accessible on foot and are often more productive than drifting or anchoring. Wade fishing the lagoon flats also requires no boat. A boat gives you access to offshore reefs and wrecks, but the jetties and flats hold plenty of fish year-round without one.

What's the difference between the north and south jetties?

The south jetty is longer, more exposed to the ocean, and attracts larger Spanish mackerel and kingfish, especially in summer. The north jetty is shorter, sits more in the inlet proper, and is better for redfish and snook. The north jetty is also less crowded. Both are productive; choose based on what species you want to target and how busy the park is.

Can I catch tarpon at Sebastian Inlet?

Yes, April through June is peak tarpon season. Large tarpon move through the inlet on their way north and can be seen rolling in the deeper channels and around the jetties. Sight-casting with live mullet or large shiners is the most common method. The jetties are crowded during this season, and tarpon fishing requires patience and skill.

What should I bring if I'm wading the flats?

Bring polarized sunglasses (essential for seeing fish), a 7 to 8-foot medium-light spinning rod, small jigs and soft plastics, light-colored clothing, sunscreen, and water. Wear shoes with good grip. A small tackle box and a net are helpful but not required. Fish early morning or late afternoon when the light is low and fish are more active.