Wat Thammaniyom, also known as "Wat Yam Thai," is commonly referred to as "Wat Yam" by the locals. It is located north of the railway in Huaro Subdistrict, Phra Nakhon Si Ayutthaya District, Phra Nakhon Si Ayutthaya Province. This temple is affiliated with the Maha Nikai sect and is situated in a low-lying area next to the river. The transportation access is convenient by both water and land.