Chachoengsao, or as commonly called "Paet Riu", is some 100 kilometers east of Bangkok occupying an area of 5.351 square kilometers. Its area is a low basin suitable for cultivation, especially rice, which is an economic crop providing the principal income to the province. Chachoengsao is administratively divided into nine Amphoes and two King Amphoes : Muang, Bang Khla, Bang Nam Prieo, Bang Pakong, Ban Pho, Phanom Sarakham, Sanam Chai Khet, Plaeng Yao, Ratchasan, King Amphoe Tha Takiap and King Amphoe Khlong Khuan
Wat Sothon Wararam Worawihan This monastery houses Phra Phutthasothon or, as commonly called by the local folk, "Luang Pho Sothon". This is a very sacred Buddha image and is most revered by the people. The image in the attitude of meditation having a lap width of 165 centimeters and 198 centimeters in height. Wat Sothon is on the river bank in Amphoe Muang approximately two kilometers south of Sala Mang (the City Hall).
Somdet Phra Si Nakharin Park This is located in front of the Chachoengsao City Hall with a total area of about 90 rai. The park is arranged like a local garden with a large swamp in the middle surrounded by various types of trees.
Bats at Wat Pho Bang Khla Wat Pho Bang Khla is located 17 km. along the Highway 304 (Chachoengsao-Kahin Buri route) with another 6 kilometers turn to Highway 3121 to Amphoe Bang Khla. Thousands of fruit eating bats, or flying foxes, hang crowdedly on several big trees within the monastery.
Khao Hin Son Development Study Center it is on Phanom Sarakham-Kabin Buri Road between Km. 51 and 52 near Tambon Khao Hin Son and Tambon Ko Khanun, Amphoe Phanom Sarakham, and occupies an area of 1,929 rai (about 770 acres). Khao Hin Son is a hill having white sandy rocks thickly dotting the landscape and is one of the beautiful places in Chachoengsao. Within the area of the center are Phra Bowon Shrine; King Phra Pin Mao Monument located in the botanical garden zone; fast growing tree garden zone; crop cultivation experimental plots; fishery and livestock demonstrations; occupational training at the Special Folk Arts and Crafts Center under H.M.the Queen's patronage. The royal idea of the present King originated the establishment of this Khao Hin Son Development Study Center.
You can get more information at website http://www.hotelthailand.com/travelinfo/central/chachoengsoa.html