Thousands of army cadets, university students and a handful of volunteers perform a Muay Thai "wai khru" supplication and set a new Guinness World Record as the sun set in seaside resort Hua Hin.
The gathering, part of the international Muay Thai Festival currently taking place just outside the holiday town, has broken the previous record of 250 by having 3,660 participants simultaneously performing the traditional pre-match dance of respect for their coach.
