Click image to view Full 360° Panorama Panorama by: Rommel Bundalian Sumaguing Cave (Sagada, Mt. Province) Sumaguing Cave has the largest chamber connecting all the 60 caves of the town. It is also known as the Big Cave. It is the most popular and most visited site in Sagada. Stalagmites and stalactites form inside the caves over millions of years and are truly a sight to behold.