You have seven days to use it, so we usually go to SeaWorld on day 1 and day 6 of a seven night / six day trip. Note: You need to go to one of the customer service desks to get your pass to come back. It's a good idea to do this sometime during the day vs. waiting till the end of the day when the line is long (lots of people doing this before going home). We just love this park. It's our favorite in Orlando.