What time should we get there? Is the line long already at 6 pm?

It gets busier the later in the season that it gets. The line shouldn't be too long at 6. They open the doors at about 7.

Early in the season, such as September, and on most Sundays & Thursdays, the line tends to be shorter. Fridays and Saturdays are typically very busy, especially closer to Halloween.

Our wait was about 10-15 minutes on the 15th of October at 7 PM...

I think there's haunted mazes inside.

There was only about a 10-15 min wait at about 7:30pm on the 2nd Friday of October.