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Lake Life Festival May 16th, 2026 in Mannford, OK at New Mannford Ramp! 🌞 This year, we're kicking off summer in the best way possible — right by the lake! We've planted the festival at the perfect spot on the calendar: the weekend after school lets out, making it the official start to summer fun in Mannford. We expect a bustling crowd of eager lake lovers ready to soak up everything Keystone Lake has to offer! For over 50 years, this event has been a staple of our community. Originally known as the Striped Bass Festival, it's grown into a celebration of lake life, community spirit, and outdoor fun. Many of the classic activities we enjoyed as kids are still here today — ready for the next generation to make their own memories. We're thrilled to once again host the Kid's Fishing Derby — a crowd favorite that introduces kids to the joy of fishing while fostering a love for the great o...