Directions to Killantringan Bay Dun: Take the B738 Leswalt right turn off the A77 c. 0.1 miles before Portpatrick. Stay on the road for c. 2.5 miles to reach Knock Farm ruin. Take the 2nd left turn as the 1st left turn is rutted. There is room to park up. The farm track is too rough to drive down. Follow my route on Killantringan Bay Dun N (go to Links).