The fort's design speaks to the anxieties of its era. At ten meters, the walls rise high enough to intimidate approaching vessels while offering defenders a commanding view of the surrounding waters. The two-meter thickness absorbs cannon fire and resists the typhoons that regularly sweep through Palawan's waters. A tall belfry served double duty: calling the faithful to mass and scanning the horizon for the silhouettes of raiding ships. Watchtowers at each corner completed the surveillance network. The Recollects who designed this fortress were not trained military engineers -- they were monks who had learned the hard lessons of 1636 and built accordingly. Every architectural choice reflected a single imperative: this island would not be plundered again.

Saint Augustine Church, built in 1622 -- nearly sixty years before the fort itself -- is considered the oldest church in Palawan. That the fort was constructed around an existing church tells the story of Cuyo's priorities: the spiritual center came first, and the military shell grew around it. Today the church still stands inside the fort complex, accompanied by the convent and chapel that round out the compound. For centuries, this arrangement made Cuyo a kind of fortified parish, where Sunday worship happened behind ramparts designed for war. The parishioners who gathered inside those walls were simultaneously congregants and garrison, their hymns rising above battlements.

Cuyo sits in the Sulu Sea between the main body of Palawan and the Visayas, far enough from major population centers to feel genuinely remote. The island's isolation made it both vulnerable and resilient. Raiders could strike with little warning, but the community that endured those strikes developed a fierce attachment to place. The fort became the physical expression of that attachment -- a permanent structure on an island where permanence required effort. The National Historical Commission of the Philippines recognized this when it declared Fort Cuyo a historical landmark in 1939, one of the earlier such designations in the country. The fort had by then already stood for over 250 years, its coral stone walls weathered but intact, still anchoring Cuyo's sense of identity.

Today Fort Cuyo draws visitors who make the journey across the Sulu Sea to see what remains of Spanish-era Palawan. The fort's condition reflects both centuries of tropical weather and periodic restoration efforts. Its walls still define the center of the island's main settlement, a reminder that Cuyo was once important enough to fortify. The church within continues to function as an active parish, its congregation worshipping in a space that has served the same purpose for over four hundred years. In 2022, Palawan launched a year-long celebration marking 400 years of Christianity in the province, and Cuyo's church -- the oldest in the region -- stood at the heart of those commemorations. The fort that was built to protect it still frames the view.