Short, but they take a long time, a very long time. The queue only holds about 1000 people. The thing is that the 7-10min load times take forever. I'm not exagerating, both days I've gone it's taken over 7min for every train's riders to get off and others to get on. Try and get their early so you don't have to wait. If you do get there late and the queue is filled up be prepared to wait for over 2 1/2 hours.
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"This time I think ... I think it's ... it's going to work!" - Dr.Bruce Banner