Adventure · Fun Activities · Horseback Riding Pine Grove Stables Eganville, Ottawa, Ontario Pine Grove Stables offers Riding Lessons, Trail Rides, Boarding & Training, as well as Pony Rides and Birthday Parties. Our horses are all well trained and reliable. Ponies for kids are available. Located right on Hwy 60, near Pembroke, Ontario, we are easily accessible from anywhere in the Ottawa Valley. Open year round.