Hidden Oaks Nature Center is located in Annandale, Virginia off of Route 495 in Fairfax County. The nature center has 1/3 mile of clearly marked trails to take the kids on. Small informative signs are located through the trials for the kids to read.
Inside the nature center there is no shortage of things for the kids to do. A few reptiles and amphibians are featured in exhibits for the kids to view. One exhibit features costumes so the kids can dress up like their favorite animal. After the nature center you can walk down to the play equipment and picnic tables to eat some lunch. The play equipment wasn't in the best shape but my kids didn't care.
If you live in the area this is a great place to take the kids to learn about nature and burn off some energy.
Next stop.....Meadowlark Botanical Gardens in Vienna, VA!