The Botany Town Centre Summer Fun Run and Walk on in Auckland has 5K and 10K Fun Run and Walk options.
The course is on-road, starting and ending in the middle of Botany Town Center. It runs out of the shopping center and around Te Irirangi Drive, Armoy Drive and Chapel Rd, returning back into the shopping center. The 5K event is one lap of this course and the 10K is two laps. See the official website, linked to below, for a course map.