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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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Plans in Channel Islands National Park by other users

11 days in Channel Islands National Park & Los Angeles BY A USER FROM UNITED STATES December, teens, culture, outdoors, beaches, historic sites, museums, popular & hidden gems PREFERENCES: December, teens, culture, outdoors, beaches, historic sites, museums ATTRACTION STYLE: Popular & hidden gems PACE: Medium 7 days in Pasadena, Channel Islands National Park & Carmel BY A USER FROM UNITED STATES December, outdoors, romantic, hidden gems PREFERENCES: December, outdoors, romantic ATTRACTION STYLE: Hidden gems PACE: Medium 20 days in California & Grand Canyon National Park BY A USER FROM NETHERLANDS October, kids, hidden gems PREFERENCES: October, kids ATTRACTION STYLE: Hidden gems PACE: Medium 19 days in West Coast BY A USER FROM UNITED STATES June, culture, outdoors, relaxing, romantic, beaches, historic sites, museums, shopping, hidden gems PREFERENCES: June, culture, outdoors, relaxing, romantic, beaches, historic sites, museums, shopping ATTRACTION STYLE: Hidden gems PACE: Medium 6 days in Channel Islands National Park BY A USER FROM UNITED STATES August, culture, outdoors, relaxing, romantic, beaches, historic sites, museums, hidden gems PREFERENCES: August, culture, outdoors, relaxing, romantic, beaches, historic sites, museums ATTRACTION STYLE: Hidden gems PACE: Medium 10 days in United States BY A USER FROM UNITED STATES September, culture, outdoors, relaxing, beaches, historic sites, popular & hidden gems PREFERENCES: September, culture, outdoors, relaxing, beaches, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 18 days in Seattle & California BY A USER FROM UNITED STATES May, fast-paced, popular PREFERENCES: May ATTRACTION STYLE: Popular PACE: Fast-paced
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Reviews
TripAdvisor
  • 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 »
  • Our visit to Anacapa was a day well spent. The ride over and back with Island Packers was enjoyable; we were fortunate to have calm waters and not too strong of a breeze. Three varieties of dolphin an...  more »