Marathon Offshore Grouper & Snapper Charter
Private Trip
Offshore Fishing
Full-day offshore fishing targeting grouper and snapper speciesWinter kite fishing opportunities for kingfish and sailfishLicensed gear and equipment provided for four-person capacity
Looking for a solid full-day fishing trip in Marathon? You've found it. We're talking about getting out to those productive offshore reefs where the grouper and snapper live, plus having shots at some serious pelagics when conditions line up. This isn't your typical half-day inshore deal – we're burning fuel to get to the good stuff where the big fish hang out. With gear and licenses covered, all you need to bring is your appetite for catching fish and maybe some snacks for the ride.
We'll be targeting those deeper reefs where the bottom fish stack up, and trust me, Marathon's got some of the best structure in the Keys. You're looking at a full day on the water with our top-rated captain who knows exactly where to put you on fish. The boat holds up to 4 anglers, so you're not fighting for rail space or dealing with a crowded deck. During winter months, we switch gears and break out the kites for kingfish and sailfish – that's when things get really interesting. The water's usually calmer in winter too, which means better conditions for those longer runs to the prime spots. Summer brings consistent action on the reefs, with grouper and snapper biting steady when you find the right structure.
Most of our time is spent bottom fishing over rocky structure and ledges where grouper and snapper set up shop. We're talking about dropping baits in 80-120 feet of water, using circle hooks and heavy enough tackle to pull fish away from the rocks before they cut you off. The key is getting your bait right to the bottom and being ready for that thump when a gag grouper or mutton snapper decides to eat. When winter rolls around and the kingfish show up, we deploy kites to get live baits way up in the water column – it's a completely different style of fishing that produces some of the most exciting strikes you'll see. The kite keeps your bait dancing on the surface, and when a king or sail comes up on it, you'll know it immediately. All the tackle is provided, from the heavy bottom rigs to the kite setups, so you don't need to worry about rigging or losing expensive gear to the reef.
Red Grouper are the bread and butter of Marathon offshore fishing. These guys love hanging around rocky bottom in 60-100 feet of water, and they'll absolutely slam a fresh sardine or grunt. Red grouper typically run 5-15 pounds out here, with the occasional 20-pounder showing up to make your day. They're most active during moving water, so we time our trips around the tides. What makes them so popular is they fight hard on the way up and taste even better on the plate – firm white meat that's perfect for grilling or frying.
Great Barracuda cruise these reefs year-round, and they're always ready to eat. These toothy predators can stretch 4-6 feet and put up a wild fight with jumps and screaming runs. They're particularly active around dawn and dusk, but you can catch them all day if you know where to look. Barracuda hit fast-moving baits and lures, making them a customer favorite for the pure excitement factor. The bigger ones will test your drag system and give you a workout.
Mutton Snapper are the prize catch for many anglers targeting these Marathon reefs. These beautiful fish have amazing coloration and can reach impressive sizes – 10-20 pounders are possible, though most run 3-8 pounds. They're smart fish that require finesse, often demanding lighter leaders and perfect bait presentation. Muttons are most active during warmer months and tend to bite better around structure changes and drop-offs. When you hook into a big mutton, you'll understand why they're so highly regarded.
Black Grouper are the heavyweights of the reef. These bruisers can exceed 30 pounds and will immediately head for the nearest cave or ledge when hooked. They're not as common as reds, but when we find them, it's game on. Black grouper prefer deeper water and bigger baits, and they absolutely hate being pulled away from their holes. The fight is all about the first 30 seconds – if you can get them off the bottom, you've got a chance.
Gag Grouper round out our target species and are known for their aggressive strikes and bulldogging fights. These fish love structure and are masters at using it against you. Gags typically run 5-20 pounds in these waters and are most active during cooler months. They're excellent table fare and always a welcome addition to the fish box.
Marathon's offshore fishing is world-class, and this full-day charter puts you right in the middle of it. With licenses and gear included, professional guidance, and access to some of the most productive reefs in the Keys, you're set up for success. Whether you're after a cooler full of grouper and snapper or hoping to tangle with a sailfish on the kite, this trip delivers the goods. The boat's limited to 4 anglers, so you'll have plenty of room to fish and won't be competing for the captain's attention. Book now and get ready to see why Marathon is considered one of Florida's best fishing destinations.
Mycteroperca BonaciBlack Grouper are the heavyweights of our reef system, with most running 15-25 pounds but capable of reaching 50+ pounds. These olive-gray bruisers with dark rectangular blotches live around offshore ledges, wrecks, and hard bottom in 60-200 feet. Winter months bring them into shallower water around 30-80 feet, making for our best shots at the big ones. What makes them special is the raw power - once hooked, they'll try to drag you straight down to the rocks. The meat is mild and firm, perfect for grilling. You need heavy tackle - 80lb braid minimum with 100lb leader. The trick is getting them up fast before they reach structure. When you feel that thump, set hard and crank immediately - no playing around with these fish.
Mycteroperca MicrolepisGag Grouper are solid fighters that prefer hanging around rocky structure and offshore reefs in 40-120 feet of water. Adults typically run 15-25 inches, with the occasional 30+ inch fish showing up. The males are darker with distinctive reticulated patterns on their dorsal fins, while females show more marbled gray coloring. They're ambush predators that love live bait like pinfish and mullet, but will readily take fresh cut crab or squid. What anglers appreciate is their consistent bite and the strong initial run when hooked. The meat quality is excellent - firm white fillets that taste great. Best action happens around stone crab traps where they hunt. Once you hook one, lock down that reel drag and don't give them slack - they'll head straight for the rocks to break you off.
Sphyraena BarracudaGreat Barracuda are the speedsters of our local waters, reaching 2-4 feet on average with some monsters hitting 6 feet. They cruise the surface around reefs, wrecks, and clear water drop-offs, often following divers and boats out of curiosity. Spring spawning season brings the best action when they're most aggressive. What guests love is the explosive strike and that initial blistering run - they'll hit 35 mph in short bursts. The fight is intense but brief since they burn out quickly. While the meat isn't our main target due to ciguatera concerns, the thrill of the catch keeps people coming back. Watch for the jump at the end and use a landing net - those teeth mean business when they're boat-side.
Lutjanus AnalisMutton Snapper are premium targets that most anglers dream about catching. These pinkish beauties average 15-20 inches but can reach 30+ inches and 20+ pounds. They love sandy areas near reefs and structure in 60-200 feet, especially around inlet mouths with good tidal flow. Adults are usually solitary, making each catch special. The fight is what sets them apart from other snappers - they're incredibly strong and will make multiple runs for the bottom. The meat is absolutely top-shelf eating. Best fishing happens during moving tides when they're actively feeding. Here's the key: use the freshest bait possible with minimal weight, and when you see that pink flash coming up through clear water, keep steady pressure and lead them away from structure.
Epinephelus MorioRed Grouper are one of our most reliable catches here in Marathon waters. These rusty-red beauties typically run 5-10 pounds, though we see some pushing 20+ pounds on the reefs. They hang around rocky bottoms, ledges, and wrecks in 30-120 feet of water year-round. What makes them special is their aggressive nature - they'll hit fresh shrimp, crabs, or cut bait without hesitation. The fight is solid but manageable, and the meat is outstanding - firm, flaky, with that sweet taste from their shellfish diet. Once you hook one, keep steady pressure and don't let them dive back into the rocks. Pro tip: use a knocker rig to keep your bait right on the bottom where they feed.
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