Mauna Kea is one of the five active volcanoes on the island of Hawaii, at 35 mi / 56 km in the west of Hilo Town while its peak is the highest point in the state, standing at 13803 ft / 4207 m above the sea level.
The summit of the mountain lies above the forest line and the terrain consists of mostly lava rocks and shrubs due to its alpine weather conditions. Mana Road Trail starts in the north near Waimea Village. It is a 43 mi/69 km long rough jeep trail, about five hours drive and continues around the Mauna Kea mountain. The route starts at 3500 ft/1066 m height and goes over 8000 ft/2438 m near the Mauna Kea Visitor Center.
Before driving this trail area, it is best to get in touch with the local land manager for registration, gear and equipment needed, as well as to verify open and closure dates and time. The terrain is muddy and it is better to avoid this route when it is raining a lot.
Take a GPS with you and enjoy the 4wheel drive in an idyllic scenery of tropical rainforest, green fields, volcanoes and mud. In the town of Hilo, there are shops that you can rent 4wd cars, equipment, 4wd tours, as well as maps with the trail roads.