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Anacapa Island, Channel Islands National Park

(3.7/5 based on 75+ reviews on the web)
Anacapa Island is a small volcanic island located about 11mi off the coast of Port Hueneme, California, in Ventura County. The island is composed of a series of narrow islets 6mi long, oriented generally east-west and 5mi east of Santa Cruz Island. The three main islets, East, Middle and West Anacapa, are collectively known as "The Anacapas" by some authors. All three islets have precipitous cliffs, dropping off steeply into the sea.Anacapa is the smallest of the northern islands of the Channel Islands archipelago, and is within the Channel Islands National Park.Geography and geologyAlong with Santa Barbara Island, Anacapa was formed by volcanic eruptions between 19 and 15 million years ago. These eruptions are believed to have been caused by thinning of ocean crust as the block containing the northern Channel Islands and Santa Monica mountains was rotated clockwise by the transverse motion of the Pacific and North American plates. Lava from these eruptions can be found across the region, and in depths of up to 10,000ft. The rocks that make up Anacapa are composed of lava, breccias, volcanic ash and cinders.Erosion has heavily weathered the lava formations of Anacapa, and wave action caused the island to split into three islets in recent prehistoric times. The islets display a wide variety of erosional features including sea arches, sea caves, stacks, wave-cut platforms, surge channels and blowholes.
Use our Channel Islands National Park holiday planner to visit Anacapa Island on your trip to Channel Islands National Park, and learn what else travelers and our writers recommend seeing nearby.
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TripAdvisor
  • I plan to see all the US National Parks at some point, and while in LA I took a day trip to Anacapa, Channel Islands. Suggest you do research on all 5 islands and the ferry schedule/options before you...  more »
  • To like Channel Islands National Park, you need to like water. The beauty and the activities are best enjoyed from a kayak or a boat. If you like hiking or other land activities, this is not the park ...  more »
  • came here for my birthday so we can check off this park and found the entire planning tedious and the hike itself unappealing. first of is transportation. there is only one boating company that brings...  more »