Chachoengsao is 80 kilometers from Bangkok, with the area of 5,351 square kilometers. It is located on the east of Bangkok. Its fertility is due to Bang Pakong River. It is an important venue for agricultural products in the Central Region, with mango as the most popular fruit of the province. Moreover, it is the location of the sacred Phra Phutthasothon Buddha image. In general, the areas are plains with forests along the sea coast. In the east, in Amphoe Sanam Chai Khet, the areas contain highlands and mountains, with the attitude of 300 meters above sea level.

The history of Chachoengsao dated back since the Ayutthaya Period during the reign of King Phra Borom Tri Lokkanat. Most people live along the banks of Bang Pakong River and canals. Phra Phutthasothon or "Luang Pho Sothon” is the center of beliefs and faith. In the past, Chachoengsao was a small town, and was upgraded to a province in 1916.

Khao Hin Sorn's unique appearance resembles a random piling of large, smooth, white sandy rocks on top of each other, thus its name. Around the area is a temple of the same name and the well-manicured Somdej Phra Pinklao Park.

The Khao Hin Sorn Research and Development Centre was established by King Rama IX, the present monarch, with the objective to experiment and study in the area of growth of different flora and fauna species, fishery, and animal preservation.

Khao Ang Ranai Wildlife Sanctuary encompasses a large area that extends into 5 provinces. It contains the last well-preserved tropical forest of the eastern region and is the origin of the Bangpakong River and the Prasae River in Rayong. The park's main attraction is the Ang Ranai Waterfall.

Wat Pho bang khla This temple is located 17 kms. from the town along Highway No. 304 (Chachoengsao-Kabin Buri route) and another 6 kms. along Highway 3121. It is home to numerous fruit bats, or flying foxes, which hang themselves on the trees within the precincts of the temple.

Monument of King Taksin the Great This was constructed as a memorial site for the historic event when King Taksin led the army past Bang Khla after the fall of Ayutthaya to restore Thailand's independence.

Mango Orchards Amphoe Bang Khla is a major producer for mangoes of various kinds, which are known for their superb quality and taste. The produce is plentiful in March, and the Mango Fair is held during this time to promote this famous fruit.

Wat Muang (Wat Pitulathirat Rangsarit) Built in the reign of King Rama III in 1895, the architectural style of this temple is similar to Wat Phra Kaeo in Bangkok. This temple was formerly known as Wat Mueang. In 1908, during his visit to Chachoengsao, King Rama V gave the new name as "Wat Pitulathirat Rangsarit” which means that it is built by the King's uncle.

Ancient Fortress Located on Suk Kasem Road, this site was built in the reign of King Rama III. During the reign of King Rama V, this fort was used to fight against the Chinese riots. At the front of the fortress, there is a public park suitable for viewing the scenery of the Bang Pakong River. Also, many old cannons can be seen along on the wall.

Somdet Phra Sri Nagarindra Park This public park is in front of the City Hall, in the area of 90 Rae (36 Acres) which features a large swamp in the middle. Surrounded by various types of trees, the park is most suitable for relaxation.