I have been with people who have excused themselves from the table and gone to the observation deck to smoke. Not sure if there are any rules concerning this area, but it is outside. I cannot remember if there were ashtrays there or not.....since I gave up smoking years ago, I do not notice the designated smoking areas.....What I am saying is I am not sure if this is one of those designated smoking areas.....maybe you could call the restaurant and ask...