We normally get the day off on the monday of the long weekend, so May 25 in this case.
If you waited for the tuesday or later in the week it may be better.
It looks like Wonderland starts daily operations the week before. Normally early season weekdays are quieter unless schools are having class trips. It is a nice time of year to go.
reach out closer to the date, and if i have time i can meet up if you like.