Mokuûula was a tiny island in Maluûulu o Lele Park, Lahaina, Hawaiûi, United States. It was the private residence of King Kamehameha III from 1837 to 1845 and the burial site of several Hawaiian royals. The island is considered sacred to many Hawaiians as a piko, or symbolic center of energy and power. It was added to the Hawaiûi State Register of Historic Places on August 29, 1994, and to the National Register of Historic Places on May 9, 1997, as King Kamehameha III's Royal Residential Complex.
According to author P. Christiaan Klieger, "the moated palace of Mokuûula...was a place of the "Sacred Red Mists," an oasis of rest and calm during the raucous, rollicking days of Pacific whaling". When the capital of Hawaiûi moved from Lahaina to Honolulu and plantations diverted Mokuhinia's water source to irrigate their crops, Mokuûula fell into disrepair.
Mokuûula was surrounded by Mokuhinia, a spring-fed, wetland pond. The pond was reported to be the home of Kihawahine, a powerful moûo or lizard goddess. According to myth, the moûo was a reincarnation of Piûilani's daughter, the chiefess, Kalaûaiheana. Hawaiians cultivated loûi, or taro patches, and fishponds within Mokuhinia. Lahaina was once known as the Venice of the Pacific for its fishponds. The sugar cane industry diverted water from mountain streams in the late 1800s, which dried up the water source. In 1919, the county turned the land into a park and buried it beneath a baseball field.
The non-profit organization Friends of Mokuûula promoted the restoration of the sacred site from 1990 to 2011. From 1992 to 1995 and in 1999, archaeologists from Bishop Museum and Heritage Surveys surveyed the site and documented its features and boundaries. Bringing water back to this site and restoring Mokuûula and Mokuhinia received renewed attention after the devastating wildfires in 2023, including commitments by Governor Josh Green and mayor Richard Bissen.