This area is on the grounds of Naval Base Guam and requires military permission to see.

Major features include Fort Santiago, built by Spanish colonial authorities in the early 18th century to secure Apra Harbor, the so-called "Spanish Steps", which provide access from the fortifications to a well at the base of the cliff, which may actually be of early 20th-century American origin, and a series of rock shelters and caves exhibiting evidence of human occupation to the Pre-Latte Period (c. 3500 BCE).

This article about a property in Guam on the National Register of Historic Places is a stub.

You can help Wikipedia by expanding it.This article about a Guamanian building or structure is a stub.

You can help Wikipedia by expanding it.This article related to the history of Oceania is a stub.