This remote beach, located at the northern end of hotel row in Tumon, hosts the remains of a Japanese pillbox housing a cannon from WWII. The gun’s rusting barrel points out to the Philippine Sea, which served to protect the island from invading U.S. forces. The site is one of two areas on Guam where there is a Japanese gun sitting in its original position. A winding adventure trail along the cliff line features beautiful ocean scenery and a unique view of downtown Tumon. A favorite spot for local drivers, surrounding Gun Beach is when the water is calm. Otherwise, beware of the tides.