Hello Patrice, welcome to the Disney Parks Mom's Panel!
April is a beautiful time to visit Walt Disney World. The weather will be really nice and you might even get to enjoy
Epcot's International Flower & Garden Festival.
During the first 2 weeks and the last week of April you will be able to experience moderate crowd levels. Easter week is a holiday season and you can expect crowded parks.
To know which parks to visit each day I use
Disney's Calendar to know park hours and event times. Since hours and times are subject to change, I visit the calendar regularly before my vacation.
I also visit sites like Touring Plans to know predicted crowd levels.
I prefer visiting parks with long visiting hours.
Make the most of early and late park hours - when crowd levels tend to be the lowest of the day/night.
Thank you for visiting and letting us help you plan a magical Disney vacation.
Hope to hear again from you.
Miguel