Marine Corps Base Hawaii (MCBH), formerly Marine Corps Air Station Kaneohe Bay and originally Naval Air Station Kaneohe Bay, is a U.S. Marine Corps facility and air station located on the Mokapu Peninsula of windward O'ahu in the City & County of Honolulu. For census purposes, the area is demarcated as the Kaneohe Station census-designated place, with a population at the 2010 Census of 9,517. Marine Corps Base Hawaii is home to Marines, sailors, their family members and civilian employees. The United States Marine Corps operates a 7,800-foot (2,400 m) runway at the base.
MCBH is home for the 3rd Marine Regiment, Marine Aircraft Group 24, Combat Logistics Battalion 3 (CLB-3) 3rd Radio Battalion, and the Navy's Patrol and Reconnaissance Wing 2.
The base lies between the two largest windward O'ahu communities of Kailua and Kāne'ohe, and the main gate is reached at the eastern end of Interstate H-3. The main access to the base is by either H-3 or Mokapu Road. MCB Hawaii is located on the windward side of Oahu, approximately 12 miles (19 km) northeast of Honolulu. Marine Corps Base Hawaii occupies the entire Mokapu Peninsula, of 2,951 acres (11.94 km2). Two areas of the base are classified conservation land which includes the Ulupau Crater area (northeast peninsula) and the Nu'upia Pond area (at the Mokapu Road).