BUY ONE LESSON GET YOUR SECOND ONE FREE!!! LIMITED TIME ONLY! call 617-947-1055. Rocking Horse Farm is located in Plympton MA on Rt. 58. Our show horses consist of Saddlebreds, Hackneys, and Morgans that compete throughout the Northeast at all types of horse shows. Riding lessons are also a major part of atmosphere at Rocking Horse Farm, whether you want to ride for fun and to be active, or if you are looking to start showing, we work with students of all ages. The barn is made up of 20 stalls complete with indoor and outdoor riding arenas. Stop by to visit or for more information contact Lillian or Kaitlyn.