The Ayutthaya provincial administration is holding a tuk tuk rally on August 18 and 19 to promote tourism to the historical site.
Ayutthaya governor Sujin Chaiyachumsak said 250 teams of contestants can take part in the rally, for which the application fee is Bt1,000.
At least one member of the team must be dressed in an Ayutthaya period costume, the governor added.
Each team will be driven in a tuk tuk around sites to solve various puzzles during which the contestants will learn about the traditional lifestyles of the Ayutthaya people in bygone days.
The locations include Wat Phra Sri Sanphet, Wat Mongkol Bophit, Wat Mahathat, Wat Ratburana and Wat Chai Watanaram, the governor said.