You can only access the summit of Mauna Loa from the ʻĀinapō ... sickness on a hike. The trail is marked with cairns or stacked rocks, but having a map is essential. You'll be trekking through ...

After reaching the Mauna Loa Observatory at 11,200 feet, Cline had to ditch his bike and hike another 2,500 feet or so to the summit. All in a day’s work for Cline, who is used to walking four ...

Originally formed in 1881 by lava flow from Mauna Loa, the caves are now accessible to visitors via a metal ladder. The caves can be wet, dark and muddy, so proceed with caution and pack a ...