Ofu-Olosega, Twin volcanic islands in Manu'a District, United States
Ofu-Olosega are two volcanic islands in the Manuʻa District connected by a bridge, each rising to different heights with steep slopes. The landscape includes coral reefs, sheltered bays, and forests that cover much of the terrain.
The islands were settled by Polynesian people roughly 3000 years ago, as shown by archaeological discoveries of pottery and tools. Volcanic activity has not been recorded here since the mid-1800s.
The National Park of American Samoa incorporates the southern shore and coral reefs, preserving natural and traditional elements of these Pacific islands.
Walking across the connecting bridge offers views of the strait between the islands and access to both landmasses. The ground is hilly and uneven in many places, so sturdy footwear is useful for exploring.
The submarine ridge near Olosega experienced its last volcanic eruption in 1866, with no recorded volcanic activity since that time.
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