2 Volcanoes to Explore in Honolulu County

A volcanic tuff cone on the Hawaiian island of Oʻahu . And is the most popular Hawaii State Park. Hawaiians call it Lēʻahi (brow of the tuna) in reference to the formation’s ridgeline, which resembles the tuna fish’s dorsal fin. It offers stunning views of the Pacific Ocean and Honolulu that you can hike to via a trail that takes you to the edge of the 300,000-year old crater.

Koko head is an ancient tuff cone that is somewhat dwarfed by its neighboring tuff cone, Koko Crater, with its peak. Koko Head itself has three significant depressions or old vents, the largest of which forms the well-known Hanauma Bay. Koko Head's last eruption was 30,000–35,000 years ago and it is part of the Honolulu Volcanics. This is the best place for trekking and adventure lovers can explore this area.