Photo: RichardBH, Flickr

There are just a few more weeks left of summer, and more and more folks are finding that there are correspondingly few dollars left in their wallets. Fortunately, there are campgrounds all over the country that let you get away for far less than a pricey hotel or resort, and you can bring your bike along for a workout to boot!

Active.com lists seven fantastic bike-friendly campgrounds in coastal areas (though, of course, there are probably many, many more -- we'd love to hear about your favorite in the comments). And you might be surprised at some of the locations!

For example, did you know that there's mountain biking available in South Florida, just minutes from downtown Miami? Or that one state park in East Islip, New York, can provide you with both road and mountain biking opportunities of all lengths -- even century rides? Some, like the Astoria/Seaside KOA in Hammond, Oregon (about 100 miles from Portland), rent bikes, so you don't even have to worry about packing your own.

If biking's just not your thing, don't worry -- there are still loads of ways to get in a workout while camping out. Hiking, trail running, swimming, kayaking -- the list goes on and on. Share your favorite campsites and campground workouts with us in the comments!