Vai'ava Strait
Encyclopedia
Vai'ava Strait is the name of a little known strait located in American Samoa
American Samoa
American Samoa is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the sovereign state of Samoa...

. Although little known, the strait is a National Natural Landmark
National Natural Landmark
The National Natural Landmark program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only natural areas program of national scope that identifies and recognizes the best examples of biological and geological features in...

. It is a great example of cliffs formed by waves (via erosion) on volcanic rock. The strait consists of communal lands. It was designated as a NNL in 1972.
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