Menehune Fishpond

The Alekoko Fishpond, known locally as the Menehune Fishpond, near Līhuʻe, Hawaii, on the island of Kauai, is a historic Hawaiian fishpond. Also known as Alakoko Fishpond, it has been listed on the U.S. National Register of Historic Places since 1973.
The pond is bounded by a at a large bend in Huleia [National Wildlife Refuge|Hulēia River]. It has been deemed "the most significant fishpond on Kauai, both in Hawaiian legends and folklore and in the eyes Kauai's people today". As the largest fishpond on Kauai, it is estimated to have been constructed in the 15th century, and may be the first brackish-water fishpond in the Hawaiian Islands. Its construction is traditionally attributed to the Menehune, a mythical people said to have inhabited Hawaii before the arrival of the Hawaiians.
It was first listed on the U.S. National Register in 1973; the listing included one contributing site and one contributing structure. In 2021 it was purchased by The [Trust for Public Land] and conveyed to Mālama Hulēia, which has been restoring the land since 2018. Restoration projects have included removing of invasive mangrove and rebuilding a rock wall.