Tonkinese kittens leap, climb, chase, and play with toys on their own jungle gym. They are training for feline gymnastics. They are 2 litt cdddddders of 10 week old kittens and some aunts who could not resist joining them for a little exercise.
Jumpin Jack Flash, a Tonkinese kitten at 5 1/2 weeks is training for Cat Agility using toddler sized obstacles. Cat Agility is like Dog Agility but more fun. http://agility.cfa.org/ for more information.
These are 10 week old Tonkinese pedigree kittens, playing ambush in their toy box (teepee)