Kahalu ‘ u Fishpond , historically known as Kahouna Fishpond , on Kāne ‘ ohe Bay in windward O’ahu , is one of only four surviving ancient Hawaiian fishponds on O ‘ ahu that were still in use in the 20th century. In the previous century there were at least 100 such fishponds around the island. Kahouna was in use until about 1960 and was added to the National Register of Historic Places in 1973,  after which it would be destroyed by development.  The Kahaluu Taro Lo’i Historic District was also added to the National Register at that time.
Kahouna features a semicircular seawall about 1,200 feet (370 m) long. The inner and outer faces of the original wall were made of stacked stone, with gravel , coral rubble, and soil as fillers between them. 
Like its larger counterparts at Moli ‘ i and He ‘ eia , Kahouna Fishpond is now private property. Of the four major fishponds on O ‘ ahu, only Huilua Fishpond is open to the public. Kahaluu Pond, Inc., now available for Hawaiian weddings . There is a wedding chapel at one end and a pavilion and garden area at the other contents, each leased to different vendors. Columbia Pictures also filmed part of The Karate Kid Part II , at the site. 
- Jump up^ National Park Service (2010-07-09). “National Register Information System” . National Register of Historic Places . National Park Service.
- ^ Jump up to:a b “National Park Service: National Register of Historic Places: Inventory – Nomination Form # 73000668” (PDF) . Retrieved 2010-01-17 .
- Jump up^ “Kahaluu Peril Pond (digitized newspaper clippings)” . July 1970 . Retrieved 2010-01-17 .
- Jump up^ “KAHALUU FISH POND SITE” . Retrieved 2010-01-17