Hi Xiaomeng!
Welcome to
planDisney!
How exciting that you are visiting
Walt Disney World for a day in May!
As you stated, to visit any of the
Walt Disney World theme parks, you need to have a valid park admission and a
park reservation via the
Disney Park Pass system. You mentioned that you reviewed the Disney Theme Park Reservation Availability for your desired date and park and
Disney's Hollywood Studios is unavailable. I double-checked the
calendar and unfortunately, it appears that both
Disney's Magic Kingdom and Hollywood Studios are both unavailable on the day you plan to visit (May 30.)
However, EPCOT and Disney's Animal Kingdom are both still available. I recommend purchasing your one-day ticket now and adding the
park hopper option. Make an advanced reservation for either
EPCOT or
Disney's Animal Kingdom.
When you arrive on May 30, first visit the park for which you have a
reservation, then park hop over to Disney's Hollywood Studios after 2pm. It is important to note that with the
Park Hopper ticket, Guests must make a Disney Park Pass reservation for the first park they plan to visit AND enter that first park prior to visiting another. At this time, a park reservation is not required after the first park, however, reservation requirements are subject to change.
With this approach, you will be able to visit the park you desire and experience more than one park during your visit!
I hope you have a magical vacation!
Magically,
Stacy