Flight Club is their outside arena which is put up for the opening and closing parties, DC10 is likely to be manic all day and night, although busiest from about 7pm i would think. I haven't been to Space closing before, but imagine it'll be busy all day (although with the extra capacity of Flight Club should space the crowds out a bit) and rammed from 11pm on. Earlier the better to avoid queues at Space, midday - 3pm for DC10. Bora Bora is definitely open