Most every outdoor activities you'll need can be found right at home. Life is a beautiful thing.
Many start out learning how to mountain climb by essentially hiking up hill. There are many places all over North America for family camping fun. Hiking to the top of a mountain is incredibly rewarding.
You will need to be able to spend long hours walking, without producing chafing or blisters. I bought a mummy style sleeping bag, and a lot of other survival outdoor camping equipment. The feeling of challenging yourself will also be great for your mental health.
A good flashlight is definitly high on our list of camping essentials. Now go and spend some time hiking in nature.