The present invention relates to a navigational safety system for visually impaired quadrupeds. An onlay has a right side, a left side, a top side, a bottom side, and a chest side. The onlay is retrofittable to or manufactured into a harness worn by a quadruped. Distance sensors and vibrators are integrated into the onlay and configured to determine the distance between obstacles and provide localized vibration stimulation to the quadruped. The vibration causes the quadruped to change course avoiding the obstacle. In this regard, the localized vibrations are positioned on the right torso, the left torso, and the chest of the quadruped.