Head south uphill from car park to reach Croy follow signs for Antonine Wall and Croy Hill follow obvious path over hill along line of Wall and drop down to Wester Dullatur Farm to join unclassified road. Turn right and follow road to railway bridge, go straight ahead trough Easter Dullatur Farm and follow track until reaching second bridge go under railway to reach Antonine Wall and turn left. Continue following track in easterly direction to cross golf course and continue ahead until reaching road (path overgrown at this point.) On reaching road turn left and head downhill to reach Canal at Wyndford Lock cross canal and turn left to follow towpath back to Auchinstarry Marina, cross canal to arrive back at car park.