Marathon's campgrounds offer direct water access with most sites within 400 feet of either Gulf or Atlantic shorelines. Located at mile marker 50 on the Overseas Highway, Marathon serves as a central base for Keys exploration with elevations rarely exceeding 3 feet above sea level. Summer temperatures consistently exceed 90°F with high humidity while winter camping provides pleasant 70-75°F daytime temperatures.
What to do
Kayaking through mangroves: Launch directly from Big Pine Key RV Park where campers enjoy access to protected coves. "There's a neat kayak trail through the Mangroves which is cool to do and you can kayak into the Atlantic out to the sandbar it's beautiful. We found a bunch of derelict crab bouys in the mangroves we had fun collecting them," notes B M.
Bridge fishing: Several campgrounds provide direct access to prime fishing spots under the old bridges. "Walk-in access to Fishing under the bridge where you can frequently see 5 to 6 foot tarpon swimming near the pilings," reports Scott M. at Big Pine Key RV Park.
Wildlife observation: Many campers report seeing native wildlife directly from their sites. At Jolly Roger RV Resort, "Beautiful RV resort... Great sunsets! Highly recommend as the location is quiet and less traffic!" according to Brandi M.
Snorkeling: Multiple campgrounds offer direct water access for snorkeling. "The beach is rocky but there is beach access. There is a marina and a path to the old railroad bridge. Boat tours are available as are kayak rentals," mentions Lee D.
What campers like
Direct water access: Waterfront sites at Encore Sunshine Key provide immediate shore access. "We had a spot on the water and enjoyed a beautiful view of the water! The staff were friendly, professional, and helpful. The campground is very well kept," writes Darla.
Winter camping climate: Marathon's winter temperatures draw seasonal campers. "Want to stay all winter. We absolutely love this place. Great location to most of the Florida Keys. Super dog friendly and everyone seems to be loving it here," shares Josh W. about Encore Fiesta Key.
Wildlife viewing opportunities: Many campers report seeing native Florida wildlife from their sites. "Lots of manatee hang out in the marina at the resort. You can get great pictures of them," reports Kirsten J.
Social atmosphere: Communal spaces facilitate meeting other campers. "We like sunset point everyone hangs out there, shares drinks makes friends etc. some people bring guitars and sing and hang out, very laid back & happy atmosphere," according to campers at Encore Fiesta Key.
What you should know
Reservation timing: The most popular pet-friendly campgrounds near Marathon require planning 11 months ahead. "We attempted to make reservations here 11 months in advance (as soon as they opened up) and were shut out. Lucky for us, we checked on a whim two days before our stay and there was a cancellation," reports Lee D. about Buttonwood Campground.
Insect preparation: No-see-ums and mosquitoes require serious preparation. "The no-see-ums were prevalent in the late afternoon. Deep woods off heavily applied along with long sleeve sun shirts, light weight capris and a head/face scarf helped us enjoy the sunsets," advises Denise K.
Water quality varies: Swimming conditions differ dramatically between campgrounds. "The water that fronted the campsite is pretty overgrown with aquatic vegetation. Also fairly unattractive and a bonanza for bugs," notes Joshua W.
Site surfaces: Most Marathon campgrounds feature crushed gravel or limestone surfaces. "Ground is hard packed limestone so bring a hammer and heavy stakes. Can get really windy," warns Charles B.
Tips for camping with families
Pool options: Many dog-friendly campgrounds near Marathon offer pools as alternatives to ocean swimming. At Grassy Key RV Park & Resort, "Great small park with all the amenities. Nice pool and tight in the water. Very cleanly kept!!!" shares robin F.
Recreation facilities: Several campgrounds provide designated play areas. "Very family friendly. Had a pool, game room with a pool table and ping pong. Lots of board games and a tv watching room. There is a really pretty nature trail as well," describes Nicole B. about Big Pine Key Fishing Lodge.
Educational opportunities: History-focused activities engage children. "It is really neat to walk on the old bridge, and learning the history of it," mentions Whitley K.
Equipment rentals: Many campgrounds offer equipment to enhance family experiences. "We were able to get the most private tent site in the campground, the very last one next to their (gorgeous) nature trail on the ocean," reports Ashlee L.
Tips from RVers
Site selection strategy: Waterfront sites provide views but may have tradeoffs. "We camped at campsite #2 with our pop up camper. At first I was disappointed that we didn't get a site right next to the water until I walked over to that side of the camp ground and the smell of rotting sea grass was overwhelming," shares Jane L. about Curry Hammock State Park Campground.
Hookup variations: Electrical options vary between campgrounds. "We were right across from the water, an awesome view with the bridge. The amenities including the heated pool felt like luxury!!" reports Deanna G.
Maneuverability challenges: Site access can be difficult for larger RVs. "Only complaint is how incredibly tight it all is. We had a helluva time maneuvering our 35ft tt into space- had to have four neighbors move their vehicles and lots of help," warns Erika R.
Shade considerations: Limited tree cover affects comfort in summer months. "No shade so bring your own," advises Theresa K.
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