Pull on your hiking boots and take the family on a hike! Webster's dictionary definition of hike is a long walk especially for pleasure or exercise. So hiking can mean different things depending on your ability. It is a great way to enjoy nature and can be lots of fun. How about picking some wild flowers along the way or drinking spring water directly from the spring?
Some great places for family hikes are Cool Mountain Getaways. Many ski resorts offer super summer activities. http://www.gorp.com offers trail tips that will be very helpful on your adventure.
Hiking can be a rewarding experience for the whole family. It's a good idea to walk around your neighborhood to see how fast or slow everyone will go. This can be a great adventure as long as it's well planned. Take plenty of sunscreen and have fun exploring the wilderness!