We just dropped our son at the Hamilton Airport for his flight to Calgary--there really isn't much to do there--a Tim Horton's, a newstand type store, small duty free and a restaurant(serves alcohol and has TV screens playing). Five hours is a long time to pass time there. As mentioned earlier, there is the Warplane Heritage Museum but anything else you wanted to do would require a taxi ride--there are a lot of restaurants on Upper James Street which is near the airport. If all else fails, maybe we could plan a DisMeet--we discovered today that parking is quite expensive there but who knows, it might work. Good luck and keep us posted