Living in Reston is about being close to everything. For people who love the outdoors, but still value easy access to Route 7 or the Toll Road, Hunt Club Road is worth a look. Located adjacent to Lake Fairfax Park, the neighborhood has quick access to miles of hiking and biking trails (you won't feel like you're in a developed area). If water parks are more your family's speed, the Water Mine is right there too.
The long, winding street is the local's secret short cut to Baron Cameron--connecting with Ring Road, it takes you up to the entrance to Lake Fairfax Park, just off Baron Cameron. Built in the early 70s, the street has a mixture of Colonial, split-level, and ranch single family homes. Hunt Club Road is very well-maintained and the homes tend to maintain their value over time.
If you want to do more than explore the miles of park trails, you can pop over to the nearby RA tennis court, basketball courts, and one of the most popular RA pools in Reston--the Uplands pool, which has a wonderful water feature for children.
This neighborhood tends to attract urban sophisticates--people who are well traveled, well educated, and enjoy the arts. Neighbors here know each other, and it's common to hear stories of frequent get-togethers (I know of at least one dinner club that makes me wish I lived in the neighborhood).
If you're looking for a single-family home in a friendly and beautiful neighborhood, Hunt Club Road is worth a look.