Plizio Visual Lab
Mauna Kea
Plizio editorial teamData Sources
Mountain
Mauna Kea, located on the massive Big Island of Hawaii, is a colossal dormant shield volcano and arguably the tallest mountain on Earth when measured precisely from its deep, massive oceanic base. While its summit reaches an impressive absolute elevation of 13,803 feet above sea level, its total height from the Pacific Ocean floor exceeds a staggering 33,500 feet, completely surpassing Mount Everest. The volcano's highly arid, extremely clear, and completely light-pollution-free summit provides arguably the most pristine conditions for optical and infrared astronomy on the entire planet. Consequently, it hosts a massive collection of the world's most powerful, technologically advanced astronomical observatories, operating under international cooperation.
- Location: United States
- Top sights: Puʻukalepeamoa · Puʻuhaiwahine · Puʻukoʻohi
- Nearby: Puakō (44 km)
Best time to visit & climate
The most pleasant time to visit is May–Jul.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 20 | 19 | 20 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 21 | 20 |
| Rain mm | 124 | 143 | 189 | 165 | 122 | 92 | 110 | 125 | 106 | 129 | 153 | 151 |
📋 Practical info
Getting there
The drive up towards the observatory is via a well-maintained mountain road, though strictly mandatory four-wheel drive is required for the steeper upper sections.
Best season
Year-round visits are certainly possible, but travelers must be well prepared during winter for heavy snowfalls and spontaneous, unannounced road closures near the summit.
Terrain & paths
The barren volcanic landscape above the tree line is rocky and extremely steep, with the notably thin air making any physical exertion profoundly more challenging.
What to bring
Thick winter clothing, robust hiking boots, intense sun protection, and plenty of drinking water are strictly mandatory to proactively help prevent severe altitude sickness.
Parking
Parking spaces are available at the mid-elevation visitor center, as well as in a very limited capacity near the major observatories directly on the actual summit plateau.
Safety
The rapid ascent to over 4,000 meters poses massive health risks; a prolonged acclimatization stop at the designated visitor center is urgently and highly recommended.
Time needed
A classic excursion, thoroughly including the vital acclimatization period, the drive to the summit, and the safe return, usually takes a solid half-day to complete.
Geography
Facts
- Reaches an absolute elevation of 13,803 feet above sea level.
- Measures over 33,500 feet from its massive underwater base.
- Technically the absolute tallest mountain on Earth base-to-peak.
- Hosts the largest, most formidable astronomical observatory globally.
- Considered deeply sacred in traditional Native Hawaiian culture.
- A massive, classic example of a powerful oceanic shield volcano.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Mauna Kea (4)
Sights nearby
Frequently asked questions
How high is the summit?
The summit is at approximately 13,803 feet above sea level.
Can I drive to the very top?
Only with 4x4 to the visitor center; summit access is restricted.
Do I need time to acclimatize?
Yes, spend at least 30 minutes at the visitor center at 9,200 feet.
Does it really snow in Hawaii?
Yes, it snows regularly on the summit of Mauna Kea in winter.
Is the place important for astronomers?
Yes, it is one of the world's best sites for telescopes.
Mauna Kea: where is it located?
Mauna Kea is located in United States.
Mauna Kea: what is there to see?
Highlights include Puʻukalepeamoa, Puʻuhaiwahine, Puʻukoʻohi.
Mauna Kea: when is the best time to visit?
The most pleasant time to visit is May, Jul.
Mauna Kea: why is it worth visiting?
Mauna Kea, located on the massive Big Island of Hawaii, is a colossal dormant shield volcano and arguably the tallest mountain on Earth when measured precisely from its deep, massive oceanic base.
Explore with Plizio
Discover more places in North America
More places in United States →
Nearby cities
Honolulu
Hawaii's vibrant capital on Oahu blends modern skyscrapers with legendary surfing beaches and rich Polynesian culture.
Honolulu
The capital of Hawaii, a major gateway to the United States and a popular tourist destination.
East Honolulu
An upscale residential area in Honolulu, home to the famous Hanauma Bay and stunning coastal ridges.
Kailua
A tropical paradise on Oahu's windward coast, famous for its award-winning beaches and turquoise waters.
Kaneohe
Situated on a spectacular bay on Oahu, Kaneohe is known for its lush vegetation and the dramatic Ko'olau Mountains.
Kahului
Kahului is the economic hub of Maui, home to the island's main airport and major shopping centers.
Kihei
Maui's sunniest coastal town offers miles of beaches, world-class whale watching, and a relaxed, local vibe.
Ewa Beach
A vibrant coastal community on Oahu's South Shore, known for its golf courses and views of the Honolulu skyline.
Nānākuli
An authentic coastal community on Oahu's west side, featuring dramatic mountain backdrops and beautiful sandy shores.
Kalaoa
A sunny area on the Kona Coast of the Big Island, Hawaii, known for its volcanic landscapes and spectacular white sand beaches.
Mākaha
A legendary surfing destination on Oahu's leeward coast, featuring dramatic mountain scenery.
Napili
A tropical paradise in northwest Maui, famous for its protected bays, coral reefs, and sea turtles.
Kapalua
A premier resort area on Maui, known for world-class golf courses, white sand beaches, and marine sanctuaries.
Lihue
Lihue is the central hub of Kauai, serving as the gateway to the Garden Isle with its historic sites and tropical beauty.
Wailea
A luxury resort paradise on Maui, famous for world-class golf courses and golden sand beaches.