Hi, my husband and I have pre purchased the SOCAL City Pass and will visiting Universal Studio and Sea World, but he is really disappointed that Space Mountain is closing for maintenance the day before our 1st planned day at Disneyland. We can arrive earlier on the Sunday (7th September) when Space Mountain is still operating but I still want 3 full days at the parks. Can anyone tell me if we can upgrade to a 4 day hopper and the approximate cost? Many thanks