Tim's got it right! We couldn't have said it better ourselves.
The minimum age to go on the course is 5, so your younger kids won't be able to climb with you. However, there is a large outdoor area with benches and tables right outside the forest. So if you have someone who is willing to watch them while you go on the courses, then they can hang out while you climb. If it's just you and the kids, then it probably won't work out.
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