Nottawasaga Bluffs Conservation Bruce Trail Keyhole Side Trail Hiking Through The Niagara Escarpment Posted on December 20, 2019September 16, 2020 by who67 Nottawasaga Bluffs Conservation Bruce Trail Keyhole Side Trail Hiking Through The Niagara Escarpment Hiking through the escarpment literally on the keyhole side trail at the Nottawasaga Bluffs Conservation my second hike of the day.