I've used the exercise room at AKL several times while we've been there. As I recall, it opens about 6 am and closes about 8 pm. I try to go before we go to the parks, and it becomes very busy about 7, so I try to get there by 6:30 or so to avoid the rush and to get a machine I want to use (some are better than others, but, since I haven't been to AKL since last June, I can't say which). There is a posted time limit of 30 minutes, but, if it isn't crowded, I might just switch machines at 30 minutes. Otherwise, to be a good sport, I just go for 30.