From OpenwaterpediaAnacapa Island and the city of Oxnard on the California mainland on the west coast of the United States of America.
 Anacapa Island
Anacapa Island is a small volcanic island located about 11 miles (18 km) off the coast of Port Hueneme, California. Anacapa Island is composed of a series of narrow islets 6 miles (10 km) miles long, running in a mostly east-west orientation, 5 miles (8 km) east of Santa Cruz Island. The island is composed of three islets: East, Middle and West Anacapa, collectively known as the Anacapas. The islets have precipitous cliffs, dropping off steeply into the sea. East and Middle Anacapa have fairly level areas at their tops, but West Anacapa is wider and reaches an altitude of 930 ft (283 m). Middle Island reaches an altitude of 325 ft (99 m) and East Island is 250 ft (76 m) at its highest point. All three islands total 699 acres (283 ha), or about 1.1 square miles (2.8 km2).
Anacapa is part of the Channel Islands archipelago and is part of the Channel Islands National Park. It is the smallest of the northern islands. The official 2000 census population was 3 permanent residents (Ranger Station in the eastern part of East Island). East Island's most notable natural feature is Arch Rock, a 40-foot (12 m)-high natural bridge.
 Marathon Swimming
Solo and relay swims between Anacapa Island and the California mainland are governed by the Santa Barbara Channel Swimming Association (SBCSA) that supports and sanctions open water swims to, from, and between 7 of the 8 Channel Islands off the coast of Southern California, USA.
 Anacapa Island Swims
12.4 miles (10.8 nm, 19.9 km) to Silver Strand Beach, Oxnard. Cindy Cleveland pioneered this swim in 1978 in a 12 hour 48 minute double-crossing - a record that still stands. Since then there have been a total of 36 solo crossings (as of October 2012), including a double crossing by Paul Lewis. The one-way record is held by Nicholas Caine (5 hours 3 minutes in 2008).
Three relays of 6 swimmers each completed the first relay crossings of the Anacapa Channel on 14 October 2012 in 7 hours 15 minutes 18 seconds. The relay members included the following individuals:
 Inter-Island Crossing
Scott Zornig did the first 5.6-mile swim from Anacapa Island to Santa Cruz Island in 2007 in 2 hours 18 minutes.
 Board of Directors
- Scott Zornig (president)
- Dean White (finance secretary)
- Ned Denison (international liaison)
- Dale Mercker (safety & insurance)
- Dave Van Mouwerik (dean of observers)
- Lynn Kubasek (swim committee)
- Jim Fitzpatrick (banquet)
- Jane Cairns (historian)
- Evan Morrison (marketing)