One of the neater things you can do outside in the Florida Keys is going up on Henry Flagler Bridge park walkway. The bridge walkway is inside Bahia Honda State Park, and is just one vantage point you want to get of this iconic bridge. If it is a very pretty day out, definitely stop at mile marker thirty seven to explore the park. Go here if you have one hour or better yet all day. The park is open from 8am until a little after sunset and is a sure thing to do with sunny maximium-water-clarity-views. You can clean up after swimming with nice showers and restrooms, plus there is a lunch window cafe. I love it up top on the Henry Flagler Bridge park walkway.