Depart for Ayutthaya, Visit Bang-Pa-In Summer Palace : Summer Palace of Thai Kings since the 17 th century with its wealthy of collection of Thai, Chinese, and European artifacts and varied architectural styles. Then, proceed to Wat Phananchoeng, Wat Yai Chaimongkhon, you can see its large pagodas, Wat Phra Si Sanphet, outstanding monastery in grand palace.