Channel Islands of California, Island archipelago off Southern California, United States.
The Channel Islands of California are an island group off the coast of Southern California in the United States, stretching roughly 150 miles along the Pacific. The eight islands show mountainous terrain, sea caves, and different habitats for animals and plants shaped by cool water and winds.
The Chumash and Gabrielino inhabited these islands for centuries and used them as a base for trading with the mainland. Juan Rodríguez Cabrillo was the first European to document the islands in 1542, beginning a new phase in their history.
Archaeologists have found tools and settlement remains here that show how people lived from the sea thousands of years ago. These early inhabitants developed skills in boat-building and navigation that helped them travel between the islands and the mainland.
Five islands are accessible within the Channel Islands National Park and offer trails for hiking, campsites, and opportunities for kayaking. Visitors must arrive by ferry or private boat since no bridges exist, and should bring provisions and gear along.
The isolation has led to about 150 plant species growing here that exist nowhere else on Earth. Some of these species have evolved over thousands of years in such a way that they can be found only on a single island.
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