Archdiocese of San Fernando

San Guillermo Parish Church (The Sunken Church of Bacolor)

Bacolor, Pampanga

Spiritual Atmosphere & Devotion

A monumental testament to resilient faith. Following the catastrophic 1991 Mount Pinatubo eruption, lahars submerged half of this 18th-century structure. The faithful excavated the interior, transforming former second-story choir windows into present-day entrance doors.

Catholic Heritage & Sacred History

Named after San Guillermo the Hermit, the church was originally 12 meters high before the 1995 lahar flows buried 6 meters of its facade and sanctuary.

Mass Schedule & Pilgrim Guidelines

Daily: 6:00 AM - 6:00 PM

Pilgrimages to this Site

Pampanga Baroque Churches & Resilient Faith Pilgrimage

Pricing: Inquire for details 1 upcoming dates

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Parish or Group Visit?

We organize private spiritual pilgrimages for parish communities, families, prayer groups, and youth ministries.

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