Any suggestions- The Lee island Coast Area in Florida (Ft. Myers)

Going to be in the area around Ft. Myers, Florida. We’d really like to find a place to tent on the beach. The state campground (Costa Cayo) is booked. Any suggestions for some nice campgrounds with beach camping or any other must see destinations in this area? We’re interested in nice beaches and shelling or fishing.

For the time being, here are some earlier threads on the subject. Doesn’t say much about camping, though:

http://boards.straightdope.com/sdmb/showthread.php?threadid=16463
http://boards.straightdope.com/sdmb/showthread.php?threadid=58464
http://boards.straightdope.com/sdmb/showthread.php?threadid=42473