All are welcome to join FOHONC! Simply print out the form found here and drop it off or send it by mail to Hidden Oaks, along with the membership fee. Your membership helps ensure that Hidden Oaks continues to be a special place, and also grants you special benefits.


What We Do

As a member, you receive occasional news and updates from FOHONC and invitations to members-only events. We meet quarterly to discuss and learn together about park issues and improvements, as well as broader natural resource protection. An individual membership is $20. A $30 family membership includes a one-year exhibit animal adoption! You get a picture with your adopted animal, your name on their exhibit, a mention in our newsletter, and a portion of your membership goes towards their care, food, and doctor's visits. They stay at Hidden Oaks, but you can stop back to check on them any time!

Since our creation, FOHONC has contributed to many projects to benefit Hidden Oaks and the broader community. In 2011 we received the Fairfax County Park Authority's Elly Doyle Park Service Award for our success in certifying Fairfax County as a National Wildlife Federation Community Backyard Habitat.  We are also responsible for the maintenance and upkeep of Nature Playce. Some other recent projects include  supporting purchases of plant identification signs, participating in the annual Fairfax County Earth Day Celebration, supporting Boy Scout Eagle Projects, and providing funds for projects and programs run by Hidden Oaks naturalists.

Our Story

Benefits of Membership

Get Involved


Hidden Oaks is always looking for new volunteers of all ages for animal care, manning the front desk, and assisting with programs. Please call Hidden Oaks at 703-941-1065 and ask for Janet Siddle if you're interested in volunteering!

The Friends of Hidden Oaks Nature Center (FOHONC) was formed by over 250 local citizens in 2003. We were a grass-roots citizen response to the reduction of public hours at Hidden Oaks due to county-wide budget cuts.  Through our efforts, with the support of the Mason District Supervisor Penny Gross and Park Authority Board representative Ron Kindle, we succeeded in reinstating full hours and staff to Hidden Oaks. Together we've subsequently spearheaded environmental efforts in the greater Annandale area. 

Friends of Hidden Oaks Nature Center