Interested in learning more about the history of Pymatuning while touring the lake? Join park naturalist for a free historical pontoon boat ride. The ride lasts approximately 45 minutes.Sign Ups start at 8:30 am at Jamestown Marina. Sign ups are first come, first served. Riders 12 and under must wear PFD while on water. 5 riders per ride. Rides are 9:00, 10:00 and 11:00.