Samar, an island in Central Philippines, is also one of the biggest islands after Luzon and Mindanao. It is located on the easternmost side of the archipelago. Archaeologically, Samar is rich in terrestrial and underwater sites, which have not been fully explored and excavated through the years. Early on, terrestrial sites have been identified by H. Otley Beyer as belonging to the Metal Age Period based on artifacts recovered. On the other hand, its northernmost coast is the southern side of the Embocadero or the San Bernardino Strait, where the galleons used to pass during the Spanish Colonial Period. Archaeological sites have also been found around the island from the north to the south, including the eastern side. In Guiuan, Eastern Samar, archaeological survey and reconnaissance have been conducted in the island of Suluan, which was also mentioned by Beyer as an archaeological site. Rockshelters and caves yielded artifacts like earthenware sherds, trade ware ceramics, and human skeletal remains. Within the Guiuan Church complex, more than a hundred human remains belonging to adult, juvenile and children were recovered during the restoration of the typhoon-devastated church structure. The Guiuan Church is also known for the use of shells and corals to decorate its transept and baptistery.