Fishing in Marathon is sailfish, and the snapper town. We read the websites of the 99 charter boats working out of here and verified 34 of them in detail. Every number below comes from a sentence a captain published themselves.
What Marathon Fishing Costs
Published rate cards from the charters’ own websites, tenth to ninetieth percentile. These are whole-boat prices — you charter the vessel, not a seat.
| Trip | Range | Median | Rate cards |
|---|---|---|---|
| Half day (3-5 hours) | $550–$995 | $800 | 32 |
| Three-quarter day (6-7 hours) | $950–$1,600 | $1,450 | 17 |
| Full day (8+ hours) | $1,200–$2,600 | $1,850 | 27 |
A typical Marathon card reads: “3 hour Family Trip (AM/PM ) $650” — Captain Jay Charters. Compare across the chain on the Florida Keys guide.
What the Boats Here Target
Counted from the 43 Marathon boats with a verified species list. The multiple is how much more often a fish is named here than across the Keys as a whole.
| Fish | Boats naming it | vs all Keys boats |
|---|---|---|
| Grouper | 33 of 43 | 1.3× |
| Sailfish | 31 of 43 | 1.4× |
| Tuna | 28 of 43 | 1.3× |
| Mahi | 28 of 43 | 1.4× |
| Tarpon | 25 of 43 | 1.0× |
| Wahoo | 22 of 43 | 1.3× |
| Mangrove Snapper | 20 of 43 | 2.7× |
| Shark | 19 of 43 | 1.4× |
| Yellowtail | 19 of 43 | 1.8× |
| Barracuda | 16 of 43 | 1.1× |
Spanish Mackerel is what sets Marathon apart. 9 of its 43 boats name it — 3.5 times the rate across all verified Keys boats. That is a tilt in what captains advertise, not a billing: plenty of other fish are caught here, they are just advertised everywhere else too.
When to Fish Marathon
Months where three or more Marathon charters agree, counted on their own sites. Only 11 species clear that bar here, so this is a narrower picture than the chain-wide calendar.
| Fish | Months named | Strongest |
|---|---|---|
| Tarpon | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct | May (14 charters) |
| Mahi | Mar, Apr, May, Jun, Jul, Aug, Sep | June (10 charters) |
| Sailfish | Jan, Feb, Mar, Apr, Sep, Oct, Nov, Dec | January (8 charters) |
| Snapper | Jun, Jul, Aug | June (5 charters) |
| Mangrove Snapper | Jun, Jul, Aug | July (5 charters) |
| Wahoo | Jan, Feb, Sep, Oct, Nov, Dec | January (4 charters) |
| King Mackerel | Jan, Feb, Sep, Oct, Nov, Dec | January (4 charters) |
| Blackfin Tuna | Jun, Jul, Aug | June (4 charters) |
| Grouper | May, Jun, Jul, Aug, Sep, Oct, Nov, Dec | May (4 charters) |
| Mutton Snapper | Jun | June (3 charters) |
| Redfish | Sep, Oct | September (3 charters) |
Where Marathon Charters Depart
Marinas and launch points named by the captains themselves, counted where three or more agree. These are departure points, not fishing grounds — the sentences behind them say where a boat leaves from, which is not the same as where it fishes.
- Florida BayNamed by 9 Marathon captains. “From Marathon Key we can access the Atlantic Ocean, Gulf of Mexico, and the Everglades in Florida Bay.”
- Marathon HumpNamed by 8 Marathon captains. “The famous Marathon Hump lies 27 miles southeast of Marathon, and provides for some of the most consistent deep sea fishing.”
- Seven Mile BridgeNamed by 6 Marathon captains. “Seven Mile Bridge — One of the most iconic landmarks in Florida, the Seven Mile Bridge is visible from the water and makes for a memorable photo opportunity.”
- Captain Hook’s MarinaNamed by 3 Marathon captains. “Always Late Charters runs year-round out of Captain Hook’s Marina in Marathon, FL, accommodating up to 6 guests on a 32-foot SeaVee.”
- Sombrero ReefNamed by 3 Marathon captains. “Explore the scenic beauty of the Seven Mile Bridge, enjoy the stunning beaches, or dive into the vibrant underwater world at the nearby Sombrero Reef.”
Fishing Marathon From Shore
Every number above this line comes from a charter’s own website, and charters are no use to you if you are not getting on a boat. This section is different: it is drawn from Florida Keys public discussion among anglers, counted rather than quoted. These are the Marathon shore spots they raise most often.
| Spot | Times raised | Separate conversations |
|---|---|---|
| Seven Mile Bridge | 9 | 5 |
Seven Mile Bridge comes up most — raised 9 times across 5 separate conversations. We have not verified any of it against an official source, and a popular spot is not a permitted one: bridges, state parks and the sanctuary each have their own rules. Check before you fish.
Marathon Boats That Document Themselves
The best-evidenced boats working out of Marathon — every claim quoted from the captain’s own website, with the sentence that carries it.
Manicsportfishing Charters
Runs offshore and inshore and nearshore out of Marathon. Names mangrove snapper, mutton snapper, yellowtail snapper.
“We had exact directions each boat (our group rented the 31′ boat and the 36′ Grady and was so impressed with both), and on the day of the charter, Jay, Shad, and Aaron took the groups out and were FANTASTIC!.”
manicsportfishing.com
All Keys Fishing Charters
Runs offshore and inshore and nearshore out of Marathon. Names grouper, mahi, tuna.
“Our 42’ Morgan comfortably accommodates up to 6 guests as does our 34’ Seavee.”
allkeyscharters.com
Jersey Key Charters
Runs offshore and nearshore and kids and family out of Marathon. Names mangrove snapper, mutton snapper, yellowtail snapper.
“The Boat- Jersey Key 23′ Hanson The Jersey Key 23’ Hanson is surprisingly spacious for its size, offering a wide beam that makes for an incredibly stable and comfortable fishing platform.”
jerseykeyfishing.com
Seasquared Charters
Runs offshore and inshore and nearshore out of Marathon. Names mangrove snapper, yellowtail snapper, grouper.
“Now, with the acquisition of his beautiful 32-foot Century center console boat, the Wayne’s World, Capt.”
seasquaredcharters.com
Frequently Asked Questions
How much is a fishing charter in Marathon?
A half day runs $550 to $995 for the whole boat, from 32 published rate cards, and a full day $1,200 to $2,600 from 27. You are chartering the vessel, not buying a seat.
What fish can you catch in Marathon?
The 43 verified boats here name 37 species between them. The most common are grouper, sailfish, tuna, mahi, tarpon. Spanish Mackerel stands out: it is named 3.5 times as often here as across the Keys.
Do you need a fishing license in Marathon?
Not on a charter. FWC exempts anyone fishing from a for-hire vessel with a valid charter licence, so the boat covers you. Permits are separate though — the snook permit, spiny lobster permit and tarpon tag are each required in addition to a licence, and on the tarpon tag FWC says plainly there are no exemptions.
How many people fit on a Marathon charter?
Of the 26 boats here publishing a capacity, 23 cap at six — the US Coast Guard limit for an uninspected charter vessel, and the usual private-charter answer. But 3 of them carry more, up to 20: inspected vessels and party boats sell larger trips, so a big group here is one boat or two depending on which you book.
The Rest of the Keys
The Florida Keys fishing guide covers costs by town, all 53 species the fleet names, and the chain-wide picture. The fishing calendar breaks the year down month by month. Nearby: Key West, Islamorada, Key Largo, Big Pine Key, Duck Key, Cudjoe Key, Tavernier, Summerland Key.
Where Every Figure Came From
- Prices — 32 rate cards published by Marathon charters on their own websites. Read 1 October 2026.
- Boats and species — quoted from each captain’s own website, with the sentence that proves it. A boat counts only where three or more facts verified.
- Months — months named by this town’s own charters, published only where three or more agree.
- Shore spots — place names counted from public angler discussion of Keys fishing. Discussion, not verified fact, and no comment text is reproduced.
- Licence and permits — FWC: do I need a licence and its saltwater permits page, quoted verbatim.
Prices are the operators’ own published rates, quoted as ranges and attributed. We publish no reviews, ratings or photographs belonging to anyone else. Last rebuilt 2 October 2026.