I'm not sure if the hotels have happy hour but the parks sure do. One of our favorites is Confisco's (IOA). Theirs usually starts at about 3:00 and they offer sangria, beer, and wine. You can sit inside or out. I personally like to people watch and this is a great to do it from the outdoor tables. Finnegins USF) also has a great happy hour and they usually have entertainment too. By the way both of these places are great places to eat also. Enjoy!