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Kaneohe Bay

Kāneʻohe Bay
Kaneohe Bay.jpg
Kāneʻohe Bay on a calm morning viewed from the Kokokahi YWCA at the south end of the bay. Coconut Island appears in the middle of this picture.
Location Hawaii
Type Bay
Max. length 8 mi (13 km)
Max. width 2.7 mi (4.3 km)
Surface area 45 km2 (17 sq mi)
Max. depth 40 ft (12 m)
Islands 5

Kāneʻohe Bay, at 45 km², is the largest sheltered body of water in the main Hawaiian Islands. This reef-dominated embayment constitutes a significant scenic and recreational feature along the southeast coast of the Island of Oʻahu. The largest population center on Kāneʻohe Bay is the town of Kāneʻohe.

The Bay is approximately 8 mi (12.8 km) long and 2.7 mi (4.3 km) broad, with a mouth opening of about 4.6 mi (7.4 km) and maximum depth of 40 ft (12 m) in the dredged channel. It has one of the two barrier reefs in the archipelago, the other being the 27 mile barrier reef of Molokaʻi island, and also has extensive development of shoaling coral reefs within a large lagoon. Two navigable channels cut across the northern and southern ends of the barrier reef. The deeper, northern channel, located off Kualoa Regional Park, provides entrance from the North Pacific Ocean to a ship channel dredged the length of the lagoon between 1939 and 1945. The lagoon contains extensive patch and fringing reefs and its southern end is partly enclosed by the Mokapu Peninsula. This peninsula is occupied by Marine Corps Base Hawaii.

There are five named islands or islets within Kāneʻohe Bay. A sand bar (Ahu o Laka), Kapapa, and Kekepa (Turtleback Rock) are all islets on the barrier reef. Two islands within Kāneʻohe Bay are prominent: Mokoliʻi (Chinaman's Hat) and Moku o Loʻe (Coconut Island), the largest of the five. Mokoliʻi is a volcanic remnant at the very north end of the Bay, site of former Kualoa Airfield. The community on the northern side is called Waikane, or North Koʻolaupoko.


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