CC BY-SA 4.0, Wikimedia CommonsLandmark· Caballo Island· Philippines
Caballo Island (Fort Hughes)
14° 22.0′ N · 120° 37.1′ E
A rocky island 2 km south of Corregidor, once entirely occupied by the US Army's Fort Hughes. It splits the Manila Bay entrance into the North and South channels.
Practical
OSM islet position. Wikipedia: 1.21 km long and 0.32 km wide, highest point 116 m. The gap between Caballo and Corregidor is about a quarter-mile wide with 7 fathoms (13 m) and is never used by large ships. Occupied by the Philippine Navy and off limits to civilians as of 2010, so do not land.
Best for
Passing landmark at the bay entrance