Exploring Mauna Kea: The World’s Tallest Mountain

Aug 11

Written By Keoni

When you think of Hawaii, you probably imagine pristine beaches, lush rainforests, and vibrant sunsets. But the Big Island offers something even more extraordinary—Mauna Kea, the tallest mountain in the world when measured from its base below sea level. Rising over 33,000 feet from the ocean floor, Mauna Kea’s summit reaches 13,803 feet above sea level, making it a must-visit destination for adventurers and nature lovers alike.

Journey to the Visitor’s Center

Most visitors drive up to the Mauna Kea Visitor Information Station, sitting at 9,200 feet above sea level. The road is paved but steep, so a 4WD vehicle is recommended if you plan to go all the way to the summit (though the summit road is restricted to 4WD only).

At the Visitor’s Center, you’ll get your first taste of the mountain’s breathtaking beauty—rolling volcanic landscapes, crisp air, and sweeping views that stretch all the way to the ocean.

Hiking Pu’u Kalepeamoa

For those looking for a short but rewarding hike, the Pu’u Kalepeamoa trail is a fantastic option. This one-mile round-trip trek starts at the Visitor’s Center and takes you up to 9,400 feet in elevation. Though short, the trail is steep, so hiking sticks can be helpful for stability.

Once at the top, you’re rewarded with 360-degree views of the island—from the vast lava fields below to the distant peaks of Mauna Loa. It’s one of the best spots on the mountain to watch the sunset, sunrise, or even stargaze once darkness falls.

What to Bring

Mauna Kea’s high elevation means temperatures drop quickly, especially after sunset. Here’s what I recommend packing:

Warm layers (a hoodie or light jacket—temps can dip to **50°F or lower**)
Sturdy shoes (the terrain is rocky and uneven)
Hiking sticks (for the steep sections)
Water and snacks (the altitude can be dehydrating)
A great camera (even an iPhone can capture stunning shots of the landscapes and night sky)

Final Thoughts

Mauna Kea isn’t just a destination—it’s a place that changes your sense of scale and a gateway to some of the most otherworldly views on the Big Island.

Have you been to Mauna Kea? What was your favorite part? Let me know in the comments!