Join Cuyahoga, Medina, and Summit Ohio Horseman's Council Chapters at the Chagrin Polo Fields in the Cleveland Metroparks.  Friday will be registration and parking starting at noon with Pizza and dessert for supper provided by DAC.  For the ride activity, Saturday morning will be the challenging class run by the Cleveland MetroParks Mounted Police to help you gain trust and control of your horse and yourself in situations that you might find while riding on the road or in a…