Inventory and Monitoring at Ala Kahakai National Historic Trail

Along the 175-mile Ala Kahakai National Historic Trail Corridor

For centuries, Hawaiians travelling by foot relied on carefully planned trails through the lava. One network of ancient and historic trails, extending from southeastern Hawai’i Island along the west coast and ending in the far north, is today's Ala Kahakai National Historic Trail.

This coastal trail corridor traverses some of the most rugged and beautiful landscapes in Hawaii, and passes through four national park units along the way: Hawaii Volcanoes National Park, Pu'uhonua o Honaunau National Historical Park, Kaloko-Honokohau National Historical Park and Pu'ukohola National Historic Site.

What's Monitored Here

Anchialine Pools and Water Quality