Good morning, Go to the website by 6:30 am to search for same day entry tickets. If you are planning to go for future trips,you need to go to the website on the first Wednesday of each month at 9 am to get advance entry tickets. Best of luck to you and your group. There is a lot to see there.
You have to go to the website. They are free however, only at certain times. It's great place and alot to see so try for the earliest time slot it you can.
Thanks! Your answer is awaiting moderation.