Fireworks Over Lake Cumberland-Pumpkin Creek – Lake Cumberland State Dock/Jamestown Marina, 6365 State Park Rd. Jamestown, KY, ~9:30pm local time. The fireworks happen between Lake Cumberland State Dock and Jamestown Marina, so there are ample places to view the fireworks show. This is a family friendly event and absolutely free, whether you watch the fireworks from the water or on land. Info 270-343-2525.