Located close to Hidden Oaks Nature Center and Mill Creek Park, Residence Inn By Marriott Fairfax Merrifield provides a free breakfast buffet, shopping on site, and dry cleaning/laundry services. For some rest and relaxation, visit the spa tub. Enjoy the 24-hour gym, as well as activities like volleyball and basketball. Free in-room WiFi is available to all guests, along with a fireplace in the lobby and a business center.