For the more adventurous type, Sierra Cave, which is a very short distance from Callao Cave offers a lot more excitement with numerous cave formations in its pitch-black environs. We had our lunch after the Callao Cave exploration and then set off for a short hike up from the road. The cave mouth is barred with gates but since we informed them ahead, Ted was able to secure the key. Sierra Cave is one of my favorite caves because it’s a perfect example of a living cave which is ideal for studying various rock formations. Below I’m sharing an excerpt from an article I wrote back in 2005 for a magazine. It was my first visit to the cave. Nothing much has changed since then which is a good thing.
It was a choice whether we’ll go back to Manila the same route which is through Laoag or do a horse-shoe route and have a side-trip in Tuguegarao instead. While I’ve been to Tuguegarao several times already in the past years, our friend Erick hasn’t been there and it’s been five years since Og last visit in the area. So the group decided it would be real interesting to go through Tuguegarao instead and stay there for the night before finally heading back to Manila.