Right out in the open that it says multi day tickets are for one park per day plus right on the fast pass plus page it says one park per day
The
1-Day Ticket: Magic Kingdom Park is valid for admission to Magic Kingdom park. This ticket is not valid at EPCOT or Disney’s Hollywood Studios or Disney’s Animal Kingdom park.
The
1-Day Ticket: EPCOT or Disney’s Hollywood Studios or Disney’s Animal Kingdom Park is valid for admission to any one of these 3 parks. This ticket is not valid at Magic Kingdom park.
Multi-day tickets are valid for admission to any one of the 4 theme parks per day.
Tickets and any options purchased must be used within 14 days of first use, except for Florida Resident 3-Day and 4-Day Tickets. Florida Resident 3-Day and 4-Day Tickets expire 6 months after first use or December 14, 2016, whichever comes first, and may not be used on the following blockout dates: March 28 – April 10, 2015; June 6 – August 13, 2015, December 17, 2015 - December 31, 2015, January 1, 2016, March 19, 2016 - April 1, 2016, June 6, 2016 - August 11, 2016.
For Florida resident tickets, all adults will need to show proof of Florida residency at park entrance.
All tickets and options are nontransferable and nonrefundable and exclude activities/events separately priced. Water Parks subject to rehabilitation, seasonal and weather closures.
†Guests under 18 years of age must have parent or guardian permission to call.
FastPass+
Complimentary FastPass+ service lets you reserve advance access from a choice of over 60 designated Walt Disney World theme park attractions and experiences. You can secure up to 3 FastPass+ selections for a single theme park per day of your ticket. To start, you’ll need to
link valid theme park admission to your Disney account.