jade, the only thing you are going to find around Easter time is enormous Spring Break crowds. They will not have AP rates during that time since the parks will be very full, if not at capacity all the days surrounding Easter.
FWIW, Easter is very early this coming year (March 23rd), so it is entirely possible that there won't be heavy spring break crowds as not all districts will be having spring break in conjunction with the holiday. Our school district isn't having their spring break until the week of April 7 through 11.