This travel spot is featured in our seventh blog series, Sheps Stay. Photo by 2026 Clarion River Suites Imagine taking your dog for a walk through a forest where some of the trees have been standing for more than 300 years. At Cook Forest, you aren't just hiking through another Pennsylvania woodland—you’re wandering beneath towering white pines and hemlocks in a National Natural Landmark, with the Clarion River winding nearby and adventure around every bend. For a dog, it’s a