[citation needed] An extremely rare example of pre-Spanish Philippine script was found in Calatagan.

[citation needed] A Spanish lighthouse can also be found at Cape Santiago at the peninsula's southern tip dating back to the 1890s and is also one of the municipality's main tourist attractions.

[5] The town is the site of the historically and archaeologically famous Calatagan Excavation whose antique pottery and utensils contributed important facts about the culture and activities of the Filipinos before the coming of the Spaniards.

Chinese pottery, unearthed from six large cemeteries by archaeologists Olov T.R Jones and Robert B.

Fox led to a conclusion made by H. Otley Beyer which points out the existence of a sizable pre-Spanish population in the town.

These were apportioned to the inhabitants and sold to them at ₱5.00 (equivalent to ₱639.8 in 2021) per hectare payable in installment within a period of 25 years.