This campground (buttonwood loop) is where the Atlantic meets the gulf. Beautiful view from the waterfront sites. Kayak, fish, float on a raft or swim from your own campsite.  The view of the old bridge is amazing. We've stayed in several sites yet do have some favorites.  You need to book 11 months in advance to get on the water or maybe you luck out if someone cancels. 

We had water & electric & there is a dump station. They have snorkel trips from camp store there & a little museum near the swim beach. Walk up on the old bridge what a great view. Good place to see sunset not that you site isn't a good place to see it too.  If you like to look at beautiful night sky the old bridge is a great place to take it in. 

The restrooms are being redone they were working on it when we were there this year. Hurricane Irma did some damage there they were also working on rebuilding sandspur campground. 

Manatees hang out near the fish cleaning station they drink the fresh water coming from cleaning the fish. There's a small nurse shark that hangs out there too.  There is a small area for some boats first come first serve to keep your boat in the water. Very shallow coming in and out the dock area stay in the middle or you will be sorry. If you snorkel along the campground you must have a floating buoy with a dive flag. Boats need to see you. 

They rent Kayaks if you don't have your own, it's a great paddle around the key. 

Usually at sunset someone blows the conch shell (sounds like a ship horn). 

Close to Marathon & Big Pine Key (deer key). Some good eats close by Sunset Grill has great crab soup, and a pool.  The Keys Fishery Raw bar is a fun place to see the sunset. They serve a free shot at sunset. La Nina has good cuban food.  Porky's is a favorite. And don't forget the No Name Pub on Big pine Key their Pizza is good and the sangria.  From Bahia Honda it's an easy drive to Key West always a good time down there.