Flawlessly sculpted by time which antedates to about 67,000 years, the massive cave systems were conceived in Peñablanca, Cagayan – that is the Callao Cave. The Callao Cave is one of the largest cave systems in the Philippines. Its gleaming stalactites and stalagmites created by epoch carved seven wonderful chambers and stunning formations, the Column, Chapel, Skeleton, Elephant’s Head, Praying Angel, Rocket, Lion’s Head and Dog’s Head Formations.
The first huge chamber is called the Aviary Room for it serves as the home for several species of birdshe altar of the chapel is perfectly speckled of cave skylight which lights in the dark cave. This natural cathedral has also witnessed numerous of wedding ceremonies.