
Although many sites were destroyed by the invasion of Kahekili II and especially by the building of the highly controversial H-3 Freeway, many remain and are cared for by Kanaka Maoli Aloha ʻAina practitioners to this day. The valley contains many religious and other cultural sites sacred to Kanaka Maoli. The upland, or Mauka, portion of Halawa is sacred to Papahānaumoku, the Kanaka Maoli form of Mother Earth, as it is, according to legend, her birthplace and primary home, as well as one of only two or three known remaining Hale o Papa, womenʻs temples where Papa is worshipped. Today, the water of Pearl Harbor has been highly contaminated by nuclear defueling and other toxic influences, and has thereby been designated as a Superfund site. Until the late 1890s, the home of Kaʻahupahau was famously lined with beds of pearl oysters, however, according to Kanaka Maoli religious experts who follow the goddess, Kaʻahupahau removed all of the oysters (and some say, herself) because the area was being abused by human misdeeds. At the far Makai (ocean) side at Puʻuloa or Pearl Harbor, it is, according to Kanaka Maoli beliefs, the home of the shark goddess Kaʻahupahau, known as the "Queen of Sharks", who protected Oʻahu and strictly enforced kind, fair behavior on the part of both sharks and humans. The entire ahupuaʻa of Halawa is highly sacred to Kanaka Maoli.

Hālawa (Aloha Stadium) Skyline station is located at the base of the valley. As of the 2020 census, the CDP had a population of 15,016. Their confluence is within the H-3/H-201 highways exchange. Halawa Stream branches into two valleys: North and South Halawa North Halawa is the larger stream and fluvial feature.

Halawa ( Hawaiian pronunciation: ) is a census-designated place (CDP) in the ‘Ewa District of Honolulu County, Hawaii, United States.
