This trail follows the coastline over ancient fishermen's trails and historical Hawaiian Kingdom roads that have been connected through generations of use to form a single continuous route. It passes through both public and private lands, providing access to numerous beaches and resorts, and to both the Mālama Trail to Puakō petroglyph field near Holoholokai and the King's Highway inland of the Mauna Lani Resort. The Ala Kahakai also provides access to some of the most pristine shoreline remaining in Hawaiʻi, as well as numerous anchialine ponds, which are unique ecosystems given highest protection. Much of the trail receives only limited maintenance and short sections have been eroded by ocean waves. Only the Spencer-Puakō section of the trail has signage. Caution is advised as the trail follows the edge of potentially dangerous sea cliffs in certain areas. Hikes on Ala Kahakai may begin or end at any of the listed public access points.
- Difficulty: Easy
- Highest Point: 30 ft.
- Lowest Point: Sea level
