Apra Harbor, also known as Port Apra, is a deep-water port located on the western side of Guam, a territory of the United States. It is recognized as one of the premier natural ports in the Pacific Ocean due to its geographical characteristics.
The harbor is bounded by Cabras Island and the Glass Breakwater to the north, while it is bordered by the Orote Peninsula to the south. The Port of Guam and Naval Base Guam are the primary users of the facility. Additionally, the area serves as a popular destination for recreational activities, including surfing, scuba diving, and boating.