Callao Cave - Cagayan
 Located near P eñablanca - Callao Cave Road  in the municipality of Pe ñablanca in the province of Cagayan, Callao Cave  is the most famous of the limestone caves found in the province. Callao Cave Callao Cave details Callao Cave  is found in the western foothills of the Sierra Madre Mountains of the Philippines. The cave is under the  Pe ñablanca Protected Landscape and Seascape .  Callao Cave  - Penablanca, Cagayan   Callao Cave  is probably the most "historical" cave in the country. In 2007 a fossilized 61-millimeter metatarsal bone of an early settler was discovered inside the cave. It was dated using uranium-series ablation and was found to be at least 67.000 years old.       Welcome to Callao Caves     Guess how many steps you need to take to get to the cave?     Yup it's 183 steps   The remains of what was dubbed as the " Callao Man " antedated the 47,000-year-old remains of the Tabon Man. As a matter of fact, the Callao Man has considered the oldest hum...