Long, red/orange, cylindrical object floats over Biscayne Bay, FLLate afternoon - downtown Miami. Large, long, hotdog shaped object seemed to float around right in the path of incoming airliners headed for MIA. The long, cylindrical object was red or orange, maybe 100 feet long, and seemed to "float" instead of hover. A 777 flew right past the object on its landing pattern, and therefore I was able to scale the object with a 200 ft long aircraft. It also had a slight bend in it, lending to the notion that it was 'hot dog shaped'. (It sounds funny, but ut us true! I couldn't believe my eyes; I had to hang up on my girlfriend just to watch this thing float over Biscayne Bay. It eventually floated to an altitude that was so high I eventually lost sight of it.((NUFORC Note: Witness elects to remain totally anonymous; provides no contact information. PD))