Their listed times are 10am-9pm, which seems to end earlier than I recall. But if you're planning a visit, I'd shoot for anytime before 9 anyways.
9 pm we love going there at Christmas time the lights are the best down there we've taken many photos there
We were there last night (monday) and the light were still on around 9:30
I'm pretty sure that they turn them off when the place closes for the night, and that depends on the restaurants. Check the restaurant closing times for that. Usually 9 pm, but patrons are usually still finishing meals and such until nearly 10.
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