With 7:00 reservations I would say you will be there till 9. At least that's how long it took us at Narcoosee's. Then I would say you could definitely spend an hour riding the monorail, walking around the Grand Flordian, sitting in the lobby listening to music, etc. Then at 10 you can watch the fireworks from the balcony at Narcossee's. They pipe in the music and it is really pretty.