Natural Bridges Cove, Oregon. Tucked away in the Samuel H. Boardman State Scenic Corridor is a beautiful hidden gem called the Natural Bridges Cove. This unique natural wonder was formed over thousands of years by the gradual shifting of sea and stone, resulting in beautiful natural arches nestled into a secluded cove. The viewpoint overlooking the Natural Bridges can be reached on a short, easy stroll just off Highway 101, and makes for a truly magical day trip destination.