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Mount Lamlam Summit: Guam's Highest Peak

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Hike Guam's highest peak, Mount Lamlam, for stunning panoramic views and a connection to the island's rich Chamorro culture.

Mount Lamlam, meaning 'lightning' in Chamorro, is Guam's highest peak, offering panoramic views and a challenging hike. Rising 1,332 feet (406 meters) above sea level, it's known as the 'World's Tallest Mountain' when measured from the Mariana Trench. The well-worn trail provides access to stunning vistas and cultural connections.

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

Local tips

  • Start your hike early to avoid the midday heat and humidity.
  • Bring plenty of water and snacks to stay energized during the hike.
  • Wear sturdy hiking shoes due to the rocky and uneven terrain; the trail can be slippery, especially after rain.
  • Follow the pink ribbons along the trail to stay on the correct path.
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Getting There

  • Public Transport

    From Hagåtña, take the bus heading towards Agat on Route 1 (Marine Corps Drive). Inform the driver you wish to get off at the stop for Mount Lamlam. The bus ride takes approximately 20-30 minutes. From the bus stop, follow the signs towards the Mount Lamlam trailhead; it's about a 30-minute walk to the trailhead. Bus fare is around $4.00 for a day pass.

  • Taxi/Ride-Sharing Service

    From Antonio B. Won Pat International Airport (GUM), a taxi or ride-sharing service to Mount Lamlam Summit will take approximately 30-40 minutes, depending on traffic. Provide the driver with the address: 8MQ8+5JW, Mount Lamlam Summit, Humåtak, Guam. The estimated cost is $30-$40. Parking is available across the street from the trailhead at the Cetti Bay Overlook.

Discover more about Mount Lamlam Summit

Mount Lamlam, located near Agat in southwestern Guam, is more than just a hike; it's an experience steeped in natural beauty and Chamorro culture. The name 'Lamlam,' meaning 'lightning,' reflects the reverence the Chamorro people hold for this peak. While modest in height at 1,332 feet (406 meters), Mount Lamlam holds a unique distinction: measured from its base in the Mariana Trench, the world's deepest oceanic trench, it's arguably the tallest mountain on Earth. The trail to the summit is approximately 2.7 miles (4.3 km) round trip, with a steady ascent that typically takes one to two hours. The path winds through diverse terrain, from dense jungle to breezy savannahs and rocky outcrops. Along the way, hikers are treated to panoramic views of Guam's coastline, lush forests, and the vast Pacific Ocean. The trail passes through different ecological zones, offering glimpses of the island's unique flora and fauna. Mount Lamlam is also significant for its spiritual and cultural importance to the Chamorro people. It is believed to be a sacred place where the physical and spiritual worlds meet. Every year, during Easter, locals participate in a pilgrimage, carrying crosses to Mount Jumullong Manglo, the adjacent peak, in a reenactment of the Stations of the Cross. At the summit, hikers are rewarded with breathtaking 360-degree views. On a clear day, you can see the entire island of Guam, nearby Cocos Island, and even the distant Northern Mariana Islands. A concrete platform marks the summit, adorned with a geodetic marker and flags. Whether you're a seasoned hiker or a casual traveler, Mount Lamlam offers a rewarding experience that connects you with Guam's natural beauty and rich cultural heritage.
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