Hi Heather, and welcome to planDisney! Thank you for your question! The Park Hopper Option is one of those really cool features that can be added onto your ticket if you wish to visit more than one park per day, and really beneficial if you've made dining plans at different theme parks, or have reserved an activity from the
Enchanting Extras Collection such as building your very own
Droid at Disney's Hollywood Studios and you wish to start your morning at Disney's Magic Kingdom Park.
If you wish you adjust your park tickets, you can speak to a
Cast Member at (407) 934-7639, and they will be more than happy to adjust your tickets and assist you with whatever you need.
I hope that I have answered your question today, Heather! Enjoy your stay at Walt Disney World Resort!
Frances