INDANG, Cavite – A mysterious Spanish-era tunnel beneath one of Cavite province’s oldest churches has sparked renewed interest in the province’s colonial heritage, with local church officials working to preserve the structure.
The tunnel, located behind St. Gregory the Great Parish in Indang, dates to the Spanish colonial period. The church itself was established in 1611, making it among Cavite’s oldest religious structures.
The narrow passageway requires visitors to stoop at its entrance before opening into a taller corridor. Hand-carved stone walls line the tunnel, which features visible water channels along its sides and a natural spring flowing beneath.
At the tunnel’s end sits what appears to be a well or water reservoir, with an opening above that may have been used to lower buckets for drawing water.
Local historians offer competing theories about the tunnel’s original purpose.
One account suggests it formed part of an underground network connecting several old Cavite churches, including those in Silang and Imus.
A more widely accepted explanation holds that the structure served as a Spanish-era water source, with the tunnel designed to facilitate maintenance and cleaning of the well.
Church administrators currently maintain the site.
“This is part of what our ancestors built, and it has become a unique treasure of our country,” said a local heritage advocate, calling for greater preservation efforts for such historical sites across the province.
The tunnel represents one of several Spanish colonial structures still standing in Cavite which played a crucial role in Philippine history, including the 1896 revolution against Spain.
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