The ancient art of yoga is a great for the mind and body, for adults as well as kids. In fact, it is awesome for kids as it promotes neuromuscular development, improves body awareness, and offers basic stretching advantages. In addition, it helps maintain flexibility, strengthens a growing body, enhances concentration, cultivates a relaxed state of body and mind, helps with stress management, sparks creativity in young minds, and teaches discipline and responsibility.
Going outside and playing with your child will mean more to them than buying them things or doing grown up things. Every kid I've ever watched had a deep desire to be a kid with their parent. You have the ability to play and be silly no matter your age. They'll remember it forever