The Jellystone Park in Mannford is offering 50 percent off through June 10. Oklahoma’s two Jellystone Park Camp-Resorts are sold out for Memorial Day weekend, but campsites are still available at both parks in June, according to managers at both parks. “People want to get out and enjoy quality time with their families,” said Beth Ryan, who co-owns and operates the Jellystone Park location at Keystone Lake, a 25,000-acre lake near Mannford, which is 18 miles west of Tulsa. The Mannford park’s swimming pools and two 200-foot water slides will be open for Memorial Day weekend, while its floating Wibit … Continue reading OKLAHOMA ’S TWO JELLYSTONE PARK CAMP-RESORTS ARE SOLD OUT FOR MEMORIAL DAY WEEKEND