Flagstaff, AZ – President Obama and his family are scheduled to visit the Grand Canyon Sunday. The President is taking advantage of The National Park Services' last "fee-free" weekend of the summer. The campaign encouraged Americans to visit their national parks. The President's visit to the Grand Canyon is strictly personal and he will not be making any public appearances. Park Service officials say those visiting the Canyon on Sunday should plan on delays and some disruptions and closures because of the President and First Family's visit.