Searching for Freshwater Under the Sea

Posted on Jun 13, 2025 in Main

A groundbreaking scientific expedition will soon set sail off the coast of West Hawai‘i in search of something unexpected: fresh water beneath the ocean floor.

The Natural Energy Laboratory of Hawaii Authority, with funding from the Hawai‘i State Legislature, have contracted with researchers from the Hawai‘i Institute of Geophysics and Planetology and Scripps Institution of Oceanography for a two-week offshore imaging survey.

The goal is to confirm the existence of a potentially massive underground reservoir of fresh or brackish water hidden beneath the seafloor—an idea that challenges conventional understanding of island hydrology.

More details available here.