When my friend suggested I go camping at the swinging bridges, I was imagining a kind of tree fort with a high ropes course. However, he told me that these swinging bridges weren't to walk across...they were to DRIVE across. I decided this was to good to pass up. The swinging bridges are located within the Lake of the Ozarks State Park in Osage Beach MO. Its full name is Grand Auglaize Swinging Bridge and was built in 1922. From what the ranger was telling me this bridge is the oldest swinging bridge still in operation in MO. Fun fact.
I highly suggest coming here in October. The weather is great, and the crowds are gone. You have the campsite to yourself (except for Mr Ranger checking in) and you can just enjoy the river right there. Bring a fishing pole, because the fishing is good too. Not so great for bass, but there are plenty of catfish and bluegill. Yes, bluegill. Big bluegill. Many, many bluegill. Will keep you laughing and busy all day bluegill.
So if you're ever in MO be sure to check out this overlooked fun spot. Should you decide you want to go, here's a link offering you some directions. Have fun! http://bridgehunter.com/mo/miller/grand/