Plan your stop
Useful details
Confirm sites on https://visitfloridakeys.com/business-directory/key-by-the-sea.
Public listing information reports that dogs are welcome. Confirm current leash, patio, room, beach and restricted-area rules directly before arrival.
On Marathon, at MM 47–60
Key By The Sea sits in Marathon (Middle Keys, MM 47–60). The service hub of the Middle Keys, with an airport, hospital, marinas, boat ramps and plenty of dining. 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 Coconut Cay RV Resort & Marina, Curry Hammock State Park Campground, Safe Harbor Marathon. 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
- Marathon (Middle Keys, MM 47–60)
- Mapped as
- campgrounds & rv parks
- Published address
- 6099 Overseas Hwy, Marathon, FL 33050
- Published phone
- 305-743-5164
- Mapped or source amenities
- RV sites, Marathon Overseas Hwy location
- Source
- Official Florida Keys tourism directory — Key By The Sea
Confirm before you go
- Current hours, closures, fees and access rules on the linked source
- Today’s hours — none are published on this listing
- No ratings or “best of” rank — this page does not score or rank places
How to use this listing
Key By The Sea is a camping or RV listing in Marathon (Middle Keys, MM 47–60). 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
- RV sites
- Marathon Overseas Hwy location
This listing was reviewed using Official Florida Keys tourism directory — Key By The Sea. Hours, prices, access and availability can change. Confirm directly before making a special trip. Last reviewed on Oct 5, 2026 using Official Florida Keys tourism directory — Key By The Sea.
Business owner or traveler? Report an update →Claim or correct this listing