A mystery is what the X-Race at Lake Te Koo Utu in Cambridge was meant to be.
Xrace is a mystery adventure race where parents and children aged six to 14 race together, locate and complete 10 mystery challenges, racing the clock and other family teams.
Nearly 500 competitors started the course and the three-person team of Keeley, Heemi and Avery McDonald finished first in the family event in a time of 40 minutes 45 seconds.
Compulsory challenges included a secret handshake and string game. Other games included puzzle in a frisbee, sack races, blindfold challenges, face painting and puzzle solving.