Would six flags great adventure be crowded on june 25th (thursday)?

Like most seasonal parks, go during the week it will be less crowded. Avoid the weekends. So, 6/25 probably won't be crowded.

Edit: the only exception i can think of to the going to the park during the week is destination parks like Walt Disney World or any of the parks in Orlando.

Wait.. you want to go on a day that it WILL be crowded? So you enjoy standing in 100 degree weather for 3 hours to get on a 2 minute ride? Alright. I'd say.. go on the weekend.

Well If you want it to be crowded then go on a weekend,I'm going June 21st n that's a good day to to cause it's the first day of summer n fathers day. But if you don't want it to be crowded then go the weekend before that.

it'll probably be crowded for the rest of the summer! Fridays and Saturdays are popular to going on an amusement park! :) Have fun~

not sure of a undeniable day....yet definetely dont pass on the july 4 time-physique.....the least busiest days are the weekdays cuz maximum peeple paintings in the process the week and not on the weekend

sooooo hard for you but sadlly yes.