Kauai

Kauai, sometimes written Kauai, is one of the main Hawaiian Islands. It has an area of 562.3 square miles (1,456.4 km2), making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauai is 73 miles (117 km) northwest of Oahu, across the Kauai Channel. The island's 2020 population was 73,298.

United States naval facility and airport in Hawaii

Apukohai is a marine monster in the mythology of the island of Kauaʻi. Kawelo, a giant of enormous strength, departs for Oʻahu and encounters Apukohai. After a fierce struggle, Kawelo kills Apukohai, having invoked the assistance of the owl god and the fish Ulu-makaikai (Beckwith 1970: 409–411).