My 13-year-old son and I toured the labrinth. It was dimly lit, and so a bit spooky, but not scary. There are re-created "monuments" here and there, and a number of maps to help you find your way through.
And the end of the labrinth, there's a portion that is not lit. You make your way through by means of a guide rope along the wall. You CAN choose to skip this part, and exit through a nearby door - we chose this path!