For centuries, Hawaiians circumnavigated the island on a seaside route. Parts of this path still exist, preserved as the Ala Kahakai, National Historic Trails. The section from Mauna Lani to Honoka‘ope Bay overlooks jagged sea cliffs, sparkling bays, and a secluded black sand beach. Head inland to encounter one of Hawai‘i’s most extensive petroglyph fields. The 223-acre Puako Petroglyph Archaeological Preserve boasts more than 3,000 carvings etched into lava rock, many dating back to 1200 AD.