Families with young children are often searching for fun activities to do together.  Of course finding something that is also healthy, fun, and affordable is definitely a bonus as well. One option is bicycling along the many rail trails that can now be found all across the country. A rail trail is the bed of an old, no longer used railway track that has been redesigned for recreational purposes. Many have a crushed limestone bed and others are paved, but they all offer a number of advantages for families who like to be active and enjoy a bit of adventure. This article with acquaint you with rail trails.