Kailua/kalu/ is a census-designated place (CDP) in Honolulu County, Hawaii, United States. It lies in the Koolaupoko District of the island of Oahu on the windward coast at Kailua Bay. It is in the judicial district and the ahupua'a named Ko'olaupoko. It is 12 miles (19km) northeast of Honolulu over Nuuanu Pali. The population was 38,635 at the 2010 census. In the Hawaiian languageKailua means "two seas" or "two currents", a contraction of the words kai (meaning "sea" or "sea water") and elua (meaning "two"); it is so named because of the two lagoons in the district or the two currents which run through Kailua Bay. Kailua is primarily a residential community, with a centralized commercial district along Kailua Road. The population was 50,000 in 1992. Places of note in Kailua include Kailua Beach Park, Lanikai Beach, Kawai Nui Marsh, Maunawili Falls, and Marine Corps Base Hawaii.
A buzzing beach community, turquoise water with fine white sand, hiking the very popular Lanikai Pillbox, kite boarding, kayaking, snorkeling, trendy boutiques, popular restaurants and kamaaina (resident) hangouts, bed n breakfasts to enjoy livin the life in Hawaii.
The community is very fortunate to have at it's neighbor, the Kaneohe Marine Corps Base Hawaii fondly referred to as K-Bay. It is located on the island of Oahu's Windward side on Mokapu Peninsula, and is 20 miles northeast of the Honolulu International Airport. K-Bay is the largest Marine Corps element on Oahu.