If you ask me or any Malaysian what is HKK, most of us may not know the answer. Some may thought it meant Hong Kong Kaki.
Hari Kraf Kebangsaan (HKK) is mostly visited by Malay. I saw very small percentage of the visitors who are tourists or other races. This was just a personal observation on a particular day, so it may not be a fair comment on the overall turn out.
Personally, I think HKK is a colour event that Malaysian and tourists should pay a visit.