In a shallow rock shelter on the boundary of Angono and Binangonan are the oldest known artworks in the Philippines — 127 stylised figures pecked into the volcanic tuff sometime in the late Neolithic. The carvings show humans, lizards, and other animals, all in a simple line-drawn style.
A small visitor centre interprets the site; a covered walkway runs along the rock face so visitors do not damage the carvings. They are faint and you need to look — and the lighting helps best in the morning. The site is a 15-minute drive from the centre of Angono.