For zip line tours: Children can go unaccompanied as long as they meet the age and weight requirements listed with each level. For the Crazy Squirrel Aerial Adventure Tier 1: Children ages 4-10 must be accompanied by an adult on the course. Children ages 11 and up may go unaccompanied but must be able to reach a height of 44 inches. For the Crazy Squirrel Aerial Adventure Tier 2: Children ages 9-11 must be accompanied by an adult on the course. Children ages 11 and up may go unaccompanied but must be able to reach a height of 70 inches. Each accompanying adult must be at least 18 years old and may assist up to two children. Accompanying adults are subject to the same weight requirements (max weight: 250 lbs. for females, 285 lbs. for males). All participants must have a signed waiver. Guardians must fill one out for all minors under 18.