46NJ And Six Flags Great Aventure. Perl Acres (46NJ) is located right across the road from Six Flags Great Adventure and Wild Safari in Jackson, New Jersey (NJ), USA. Enjoy viewing this popular central New Jersey theme park from the air and try to spot the animals at the safari. Don't forget to watch the fireworks show, it starts daily at 9:00 p.m. in the summer. By Christopher G. Clawson.