Southeast of Prachinburi via Rtes 319 and 3070, in the village of Ban Sa Khoi (between Khok Pip and Sa Maha Pho on Rte 3070), is the Angkor-period Sa Morakot . This was an important Khmer reservoir during the reign of Angkor’s Jayavarman VII. Original laterite-block sluices, along with assorted săir·mah (boundary stones), naga (a mythical serpentlike being with magical powers) sculptures, pedestals and a sandstone lingam can still be seen here. Water from this reservoir is considered sacred and has been used in Thai coronation ceremonies. You’ll need private transport to get here.