Idid the zip lines with my husband and our four and five year olds, the first time for three of us and we had a great experience. The guides (we had four of them) quickly put us at ease and they were very professional and safety conscious. Our kids took to it like ducks to water, and have been asking when they can go zip lining again ever since! There were beautiful views from many of the zip lines too which was a real bonus. Great fun, although the Tarzan swing made me feel sick!