It lies below sea level: agricultural land (rice farms) in this region are separated from big and small rivers by high mud levees (bunds called Puravaramp).

Farmers and agricultural workers build their dwellings on reclaimed land by expanding upon these levees around these paddy fields known as padam.

The very ancient St. Marys Church, Niranam, believed to have been originally established by Thomas the Apostle, the disciple of Jesus Christ, in the 1st century AD, is 9 km south-east of Edathua.

There are a number of ancient Hindu temples with interesting legends and history in the surrounding villages of Edathua such as Changankary, Pandankary, Mithrakkary, Kozhimukk, Thalavady and Veeyapuram.

During the feast family members from outside Edathua, especially from the southern Kollam, Trivandrum side of Kerala and Kanyakumari District of Tamil Nadu, come and visit their relatives.

Varghese Augustine Punchaichira, the first elected Member of the Legislative Assembly (MLA) from the then Thakazhy constituency after India's independence, was from Edathua.

Edathua is the home town of the international swimmer Arjuna award winner Sebastian Xavier of Manammal family.