Originally Posted By Yookeroo Is it possible to buy a one day admission and then upgrade to the 2 Days/$99 pass after entering the park?
Originally Posted By imadisneygal Yes, go to either City Hall or Guest Relations depending on which Park you are in and they can help you. You'll pay the difference between the two passports.
Originally Posted By SuperDry <<< Is it possible to buy a one day admission and then upgrade to the 2 Days/$99 pass after entering the park? >>> Yes, unless the ticket you originally purchased is more than $99, such as the standard price of $101 for a 1-day adult parkhopper. In that case, you can't "upgrade" because the new ticket doesn't cost more.
Originally Posted By FerretAfros If you're planning on upgrading anyway, just get the pass to begin with. Even if it is a blockout day, you are always let into the parks on the day that you buy your pass (so there are no blockouts on your first day, unless the park is full, but that's another issue).
Originally Posted By FerretAfros I don't think it does, but I believe that it must be used within a certain time frame (both days within 2 weeks of each other?), and the first day must be used before a certain date.