In reply to RobE:
When my children were younger (and little) I would set up at the top of the route(s) on the main crag and lower them down (you can do this without running rope over the edge) and top rope them up. As they got bigger, I would set up an ab rope, they would ab in with a safety/top rope, disconnect from the ab rope and be top roped up the route
Its a great and safe (as sea cliff go) venue for kids
Rob