About 5 miles from downtown Hilo, on Kaumana Drive, you'll find the Kaumana Caves. Originally formed in 1881 by lava flow from Mauna Loa, the caves are now accessible to visitors via a metal ladder.

Hawaii island’s Mauna Loa (background), towers over the summit ... But it also has a few small cities, including the county seat of Hilo, population 45,000. Friday’s earthquake could be ...