Wilson is in Dunedin to attend the inaugural Otago Polytechnic Education Open and pass on some tips to the region's junior golfers.
Wilson was expecting a ''vast range'' of skills, with the clinics open to anyone who wanted ''to give this crazy game a go''.
Ko, of course, is a rather special player and Wilson was thrilled his former protege won the Halberg supreme award last week.
''That was cool,'' he said.
''Last year was a huge year but every year prior to that was just as big. It is good that she has got it amongst all those other amazing athletes.
''I thought the year before we were unlucky with Val [Adams] winning it. But it is hard to beat a gold medal.''
Wilson coached Ko for 11 years and played a big part in her career. But she made the decision to split with Wilson in December, shortly after turning professional.
With Wilson remaining in New Zealand and Ko spending so much time overseas, it was not a surprise. Wilson was disappointed, all the same, but remains in contact with Ko.
''We text and keep in contact via social media these days.
''At the end of the day it is the player's decision to choose what they want [from a coach] and that is up to her and obviously her parents and the team around her. It has been working so far.
''It is extremely satisfying to see her continuing to get better and better.''
With everything Ko has been able to achieve, Wilson hopes finding the next Ko might be an easier task. Her success is likely to inspire a new generation.
''I think the kids are getting younger. The par age when Lydia was playing was 10. Now it is probably 5 or 6, so there is a huge difference. Because of that, I think we will find we get players who a lot stronger when they get to their teenage years.
''The good thing is there is going to be a lot more talent in the next 10 years. It is hard to say whether there is going to be another one like her [Ko]. But it is good to have someone like her to show everyone that it is possible.''