Apra Inner Harbor, Dry Dock Island

Past nights from AIS in Feb–Mar 2024, Jul–Sept 2024 and Jun 2025
Where boats stayed: 13.442° N, 144.666° E

AIS shows only boats that carry it and that a receiver hears, so no boats on AIS never means an anchorage is empty or unsuitable. Boats that live here (at their own berth or mooring, or a week or more in one place) are left out, and boats in marinas and at piers are counted apart from the anchorage's nights. Not for navigation.