MacDonald Bridge is a Halifax Harbour shore dive beneath the Angus L. Macdonald Bridge on the Dartmouth side, combining rocky formations, harbour artifacts, and cold-water urban marine life. The entry is short from parking but crosses railway tracks and leads to a small rocky beach, so the logistics are simple only when divers are disciplined. Slack tide is the key planning point: current can become strong between shore and the bridge tower, and visibility may be very limited outside the clearer winter and spring windows.