Wikipedia
Gadao
Gadao is a legendary chief of the village of Inarajan in southern Guam. In the Chamorro language of ancient Guam, he would have had the title maga'lahi as a high-ranking male. In addition to being featured in legend, he is the namesake of Inarajan's Chief Gadao’s Cave containing ancient cave paintings. Some stories claim Gadao himself drew the figures.
Two legends featuring Chief Gadao include the Legend of the Three Feats of Strength and the Legend of the Battle Between Chiefs.