Avots: Visit Estonia
Children love it! When the child is under 1,4m tall he/she is allowed to take only 3 first tracks (the ticket is also cheaper), but they can take the ride over the canyon (Wohoo!) for additional fee...
If you like hiking in top of the trees and challenge your fear, its good place. Kids allowed 1.40 m and higher. Track 6 is good for everyone, its flying over canyon.
Visiting with smaller children so they were only able to get through the first two tracks, but the staff was friendly enough to allow for another pass.