Musicians of all skill levels are welcome to bring their instruments and "Jam Out" on the second and fourth Saturdays of the month.  Musicians gather to play in remembrance of James Gamble Rogers IV, a renowned folk singer, entertainer and storyteller.  Come bring a chair and enjoy the music. The Jam Session takes place at the Cedar Pavilion.   No power source available near the pavilion. Pre-registration is requested, but not required.  Please contact the park at (386) 517-2086 with any…