Plains mixed with low, rolling hills make up the eastern region. The Chantaburi mountain range runs west along the eastern coastline until it hits the Phanom Dong Rak mountain range, which runs north to south. The former mountain range provides a natural boundary between Thailand and Cambodia. Long, pristine strips of deserted beach and islands scattered on the sea provide a tranquil setting for those in search of paradise.

The temperate climate and furtile soil in this region makes it productive for fruit farming. The region is renowned for its plentiful harvest of exotic tropical fruits, especially rambutans, durians, mangosteens, and pineapples.