Mount Lamlam: Guam's Highest Peak
Hike to Guam's highest point, Mount Lamlam, for panoramic views, cultural insights, and a unique claim as the world's tallest mountain.
Mount Lamlam, meaning "lightning" in the Chamorro language, is more than just Guam's highest peak; it's a place where the physical and spiritual worlds converge. Rising 1,332 feet (406 meters) above sea level, this mountain offers breathtaking 360° views of Guam's diverse terrain. What makes Mount Lamlam truly unique is its claim as the world's tallest mountain when measured from its base in the nearby Mariana Trench, the deepest part of the ocean. The hike to the summit is a rewarding experience, suitable for various skill levels. The well-maintained trails wind through lush tropical vegetation, offering glimpses of Guam's unique flora and fauna. Along the way, you'll encounter picturesque viewpoints showcasing the sparkling blue waters of the Pacific Ocean. The summit provides expansive views of both the northern and southern parts of the island, making it a perfect spot for sunrise or sunset viewing. On a clear day, you might even spot neighboring islands. Mount Lamlam holds deep cultural significance for the indigenous Chamorro people. It's considered a sacred place, a bridge to the heavens in Chamorro cosmology. While not known for traditional archaeological sites, the surrounding area is rich in Guam's history. The nearby village of Umatac, one of the oldest in Guam, features Spanish fortifications and the site where Ferdinand Magellan is believed to have landed in 1521. Each year, the mountain is part of the Easter pilgrimage, where locals and visitors carry crosses to the summit, reenacting the Stations of the Cross. Remnants of World War II can also be found along the trail, adding a historical layer to the experience.
Local tips
- Start your hike early in the morning to avoid the midday heat and humidity.
- Bring plenty of water and snacks to stay hydrated and energized during your trek.
- Wear sturdy hiking shoes, as the trails can be steep and rocky.
- Bring your camera to capture the spectacular views from the summit.
- Consider visiting during the dry season (December to April) for the best hiking conditions.
A brief summary to Mount Lamlam Summit
- 8MQ8+5JW, Mount Lamlam Summit, Humåtak, GU
- Monday 12 am-12 am
- Tuesday 12 am-12 am
- Wednesday 12 am-12 am
- Thursday 12 am-12 am
- Friday 12 am-12 am
- Saturday 12 am-12 am
- Sunday 12 am-12 am
Getting There
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Driving
From most locations on Guam, navigate to Route 1, then follow it south until you reach Route 2. Continue on Route 2 towards the village of Umatac. The trailhead for Mount Lamlam is located across from the Cetti Bay Overlook. Parking is available at the overlook. There are no tolls on this route. Car rentals are widely available on Guam, with rates comparable to the U.S. A valid U.S. or international driver's license is required.
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Public Transport
The Guam Mass Transit Authority (GMTA) operates buses on nine routes connecting most villages on the island. Take the bus to the nearest stop on Route 1, then walk approximately 30 minutes to the trailhead. A one-way bus ticket costs $1.00, and a day pass is available for $3.00. Note that bus service is limited on Saturdays and does not operate on Sundays or holidays.
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Taxi/Ride-share
Taxis are readily available at hotels and major shopping centers. A taxi ride from Tumon Bay to the Mount Lamlam trailhead will cost approximately $40-$50. Ride-sharing services like Uber or Lyft may also be available. The standard taxi flag rate is $2.40, $4.00 for the first mile, and $0.80 every ¼ mile thereafter.
