Plan your stop
Useful details
Address and phone are as the Florida Keys tourism directory states them (https://visitfloridakeys.com/business-directory/sun-outdoors-marathon/park-play). Operator site: https://www.sunoutdoors.com/florida/sun-outdoors-marathon/. Listed under Duck Key (Grassy Key / Marathon east), alongside Grassy Key RV and Jolly Roger; operator branding and the street address are Marathon. Confirm transient RV sites, cottages, motel rooms, marina slips and current rates on the operator site.
On Duck Key, at MM 60–65
Sun Outdoors Marathon sits in Duck Key (Middle Keys, MM 60–65). A compact resort island near family activities and the east end of Marathon. This listing is for overnight camping or an RV stay, where reservation windows and rig limits are the real constraint.
If this camp is booked or the site will not hold your rig, the nearest other drive-up camps in this directory along US-1 are Grassy Key RV Park & Resort, Jolly Roger RV Resort, Fiesta Key RV Resort & Marina (Layton & Long Key). That is mile-marker order, not a ranking or live availability—confirm open dates, rig length and pet rules with each operator before you drive.
What this record includes
- Directory category
- Campgrounds & RV Parks
- Island area
- Duck Key (Middle Keys, MM 60–65)
- Mapped as
- RV or caravan site
- Published address
- 59151 Overseas Hwy, Marathon, FL 33050
- Published phone
- (305) 289-0011
- Official website on file
- Yes — confirm details there
- Mapped or source amenities
- Full-hookup transient RV sites, Cottages, Motel rooms, Marina slips, Pool
- Coordinates
- 24.768425, -80.943539
- Source
- Sun Outdoors and Florida Keys tourism directory
Confirm before you go
- Current hours, closures, fees and access rules on the linked source
- Today’s hours — none are published on this listing
- Anything the map source does not tag — a map is not a live business profile
- No ratings or “best of” rank — this page does not score or rank places
How to use this listing
Sun Outdoors Marathon is a camping or RV listing in Duck Key (Middle Keys, MM 60–65). Keys inventory is limited; the useful question is whether the exact site fits the rig and whether the stay is public, reserved or park-specific.
Confirm hookups, dump access, generator rules, pet and wildlife restrictions, and hurricane-season cancellation terms on the managing agency or park page. Dry Tortugas camping is expedition-style and is not a roadside campground.
Listed amenities & features
- Full-hookup transient RV sites
- Cottages
- Motel rooms
- Marina slips
- Pool
Sun Outdoors Marathon is published from public map contributors. Mapped names, coordinates and tags can lag real-world changes. Empty fields stay empty: this page adds no reviews, phones, hours, prices or ratings that the map does not have. Use the linked map object and any official site to confirm before a special trip. Last reviewed on Oct 7, 2026 using Sun Outdoors and Florida Keys tourism directory.
Business owner or traveler? Report an update →Claim or correct this listing