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Kamilo Beach (literally, the twisting or swirling currents in Hawaiian), is a beach located on the southeast coast of the island of Hawaii. It is known for its accumulation of plastic marine debris from the Great Pacific Garbage Patch.
In ancient times, Kamilo Beach was a location where Native Hawaiians would go to find large evergreen logs, drifted ashore from the Pacific Northwest, for building dugout canoes. It was also a location where those who were lost at sea might eventually wash ashore.
Kamilo Beach is approximately 1,500 feet (460 m) long, and is located on the remote southeast coast of the Kaʻū District on the island of Hawaii, at coordinates Coordinates: . There are no paved roads to the beach.
This beach, situated on a lower lava terrace, is a storm beach. It was formed by the deposit of large amounts of sand blown by prevailing winds.
At the point of Kamilo, waves have cut a large indentation, creating a variety of rocky points, ponds, and channels. Most of these are exposed during low tides, and are awash during high tides.
The debris is situated on the narrow, crescent-shaped strip of white sand, formed along the inland border of this area.
The backshore at Kamilo contains such vegetation as naupaka, milo, and ironwood.
The accumulated garbage that covers Kamilo Beach and an adjacent 2.8 miles (4.5 km) of shoreline consists of 90% plastic. Although some of the items comprising the trash are household products, the vast majority by weight are fishing related such as nets, rope, cones used to trap hagfish, spacers used in oyster farming, buoys, crates, and baskets. Much of the debris is made from plastic pellets, either pre-production nurdles or pellets created from larger plastic items breaking down into smaller pieces.
Wildlife in the area has suffered significant damage due to the on- and off-shore garbage. Fishing debris, such as discarded fishing nets and lines, drowns, strangles, and traps birds and marine mammals. Some types of plastic and their constituents, such as bisphenol A, bis(2-ethylhexyl) phthalate, and polystyrene, leach carcinogenic or poisonous chemicals when they break down. Others absorb toxins such as DDT and polychlorinated biphenyls from their surroundings. These toxins are absorbed by animals when consumed.
Multiple community-based cleanup efforts have taken place on Kamilo Beach in recent years. Prior to these efforts, the debris was 8 to 10 feet (2.4 to 3.0 m) high in some places. Most of the efforts to clean up marine debris from Kamilo Beach have been led by the Hawaiʻi Wildlife Fund and their countless beach cleanup volunteers, however other groups, including Imi Pono No Ka 'Aina, Hawaii Rainbow Gatherings, "CITO" geocachers, Sierra Club Hawaii and Beach Environmental Awareness Campaign Hawaiʻi have also helped coordinate occasional events. In 2003, the Hawaiʻi Wildlife Fund organized 100 volunteers and removed over 50 tons (45 metric tonnes) of fishing nets and other marine debris from the beach. They continue to host regular beach cleanup efforts in the region and can be reached at www.wildhawaii.org for more info about upcoming events 
In November 2007, Beach Environmental Awareness Campaign Hawaiʻi volunteers removed more than 4 million pieces of plastic from Kamilo Beach.