Nestled in the western foothills of the Sierra Madre is this seven-chamber limestone cave, considered as Cagayan’s top natural tourist destination.

Upon arrival, visitors receive a brief orientation, followed by a 184-step trek to the cave’s first chamber, the Aviary. This is home to various bird species, including the balinsasayaw, whose nests are collected for bird’s nest soup.

A few steps deeper into the cave’s second chamber is a distinctive place of worship named The Chapel. Filled with pews illuminated by natural skylight, a rock formation serves as an altar, embellished with an image of Our Lady of St. Lourdes.

As the tour continues to the third chamber, the presence of stalactites — icicle-like formations hanging from the ceiling — and stalagmites — upward-growing mounds of mineral deposits — become increasingly prominent.

A steep ascent leads to the fourth chamber, known as the Cream Room, which derives its name from a striking formation that looks like melting ice cream.

The fifth chamber, known as The Jungle, is rich with vibrant plant life, while another natural skylight brightens the space.

The sixth and seventh chambers, referred to as The Danger Zone and The Dead End, are off-limits for visitors’ safety.

Perhaps the most intriguing part of the tour is observing the archaeological sites in the first chamber, where human fossils dating back 67,000 years — including seven teeth and six bones from the feet, hands, and thigh of at least three individuals — were uncovered in 2007.