Mount Lamlam Summit: Guam's Highest Peak

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Hike Guam's highest peak for stunning panoramic views and a connection to the island's unique natural and cultural heritage.

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Mount Lamlam Summit

Hike to the summit of Mount Lamlam, Guam's highest point, for panoramic views and a connection to the island's natural beauty and Chamorro culture. The well-worn trail offers a moderately challenging climb through diverse terrain, rewarding hikers with stunning vistas of the Pacific Ocean and surrounding islands.

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

Wear long pants to protect your legs from the sharp swordgrass along the trail.
Bring plenty of water and sunscreen, as the hike can be strenuous and exposed to the sun.
Hike during the dry season (December to April) for more comfortable temperatures and less chance of rain.
Consider hiking early in the morning or late in the afternoon to avoid the heat.

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Getting There

Driving

From Tumon Bay, take Marine Corps Drive (Route 1) south. Turn left onto Route 2A before the Navy base, then continue onto Route 2. Drive approximately 3 miles past Agat. Look for a red wall on the right side of the road. The trailhead is across the street on the left, marked by a small green sign. Park at the Cetti Bay Overlook across from the trailhead. There are no parking fees.
Public Transport

From central Guam, take a bus to the Hagatna Pool Terminal. Transfer to another bus to the Hågat Mayor's Office. From there, it's best to take a taxi or rideshare to the Cetti Bay Overlook and Mount Lamlam trailhead, as the walk is quite long. Bus fare is approximately $4 for a one-way trip. A taxi from Hågat Mayor's Office to the trailhead will cost around $15-$20.

Discover more about Mount Lamlam Summit

Mount Lamlam (meaning "lightning" in Chamorro) is more than just a mountain; it's a symbol of Guam's unique geography and rich cultural heritage. Rising 406 meters (1,332 feet) above sea level, it holds the distinction of being the highest point on Guam. What makes Mount Lamlam truly remarkable is its proximity to the Mariana Trench, the deepest part of the ocean. Measured from its base on the ocean floor, Mount Lamlam boasts one of the greatest elevation changes over a short distance on Earth. The hike to the summit is a rewarding experience, offering a mix of natural beauty and moderate challenge. The 3.5-mile round trip trail winds through diverse terrain, from dense jungle to breezy savannahs, and jagged rocks. Be prepared for steep sections and potential slippery conditions, especially after rain. The well-worn path is generally easy to follow, but wearing long pants is recommended to protect against the sharp swordgrass that lines parts of the trail. As you ascend, keep an eye out for the unique flora and fauna of Guam, including native plants and various bird species. The trail also carries historical significance, with ties to ancient Chamorro culture. The Chamorro people consider the mountain a sacred place, and it is said to serve as a bridge to the heavens. Every year, devout Catholics participate in a pilgrimage to the nearby Mount Jumullong Manglo (Guam's second-highest peak), carrying crosses as part of the Stations of the Cross. Reaching the summit of Mount Lamlam rewards you with breathtaking 360-degree views of Guam. On a clear day, you can see the surrounding islands and the vast expanse of the Pacific Ocean. A concrete platform marks the summit, where you can find a geodetic marker and flags from Guam, the U.S. and other countries. Whether you're a seasoned hiker or a casual walker, the Mount Lamlam Summit offers an unforgettable adventure and a chance to connect with the natural and cultural wonders of Guam.