Cetti 7 Waterfalls
Cetti 7 Waterfalls: Guam's Cascade Adventure
Mount Lamlam Summit: Guam's Highest Peak
Discover breathtaking panoramic views from Guam's highest point, a culturally significant and geologically intriguing mountain.
Hike to the summit of Mount Lamlam, Guam's highest peak, for panoramic views of the island and the Pacific Ocean. This moderately challenging trail offers a rewarding experience steeped in Chamorro history and culture.
Plan your visit
A brief summary to Mount Lamlam Summit
Opening times, essentials, and a few local tips gathered into one calmer, easier-to-scan planning section.
Plan your visit
8MQ8+5JW, Mount Lamlam Summit, Humåtak, GU
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Getting There
Driving
From the Guam International Airport, take Route 1 (Marine Corps Drive) south. Continue onto Route 2, then turn left onto Route 2A. Continue to follow Route 2A, then turn right onto Route 2. Drive for approximately 3 miles until you see a red wall on the right side of the road. The trailhead is located on the left side of the road, across from the red wall. Parking is available near the Cetti Bay Overlook. There are no tolls or parking fees.
Public Transport
From Hagåtña, take the Guam Regional Transit Authority (GRTA) bus towards Agat. Inform the driver that you want to get off at the stop closest to Mount Lamlam. From the bus stop, follow the signs towards the Mount Lamlam trailhead. The hike to the summit starts from there. A one-way bus fare is typically around $4.
Taxi/Ride-Share
From any location on Guam, you can take a taxi or ride-sharing service to Mount Lamlam Summit. Provide the driver with the address: 8MQ8+5JW, Mount Lamlam Summit, Humåtak, Guam. The drive will take approximately 30-45 minutes, depending on traffic. The driver will drop you off near the trailhead. The estimated cost for a taxi or ride-share from Tumon Bay is $190-$230.
Local tips
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Hike during the dry season (December to April) for the most comfortable temperatures and best visibility.
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Start your hike early in the morning or late in the afternoon to avoid the heat.
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Bring plenty of water, sunscreen, and snacks.
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Wear appropriate footwear, as the trail can be steep and slippery in places.
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Consider wearing long pants and sleeves to protect yourself from saw grass.
Discover more about Mount Lamlam Summit
Mount Lamlam, meaning "lightning" in the Chamorro language, is the highest peak on Guam, rising 406 meters (1,332 feet) above sea level. While modest in height compared to other mountains, its unique distinction lies in the fact that when measured from its base in the nearby Mariana Trench, the deepest part of the ocean, it represents the greatest change in elevation on Earth over such a short distance. This makes Mount Lamlam a must-visit destination for nature enthusiasts and those interested in Guam's rich history.
The well-worn trail to the summit is approximately 3.5 miles round trip and can be reached in about an hour. The trailhead is located across from the Cetti Bay Overlook in the village of Umatac. The hike is moderately challenging, with some steep sections, and rewards you with stunning views of the island and the ocean. Along the way, you'll pass through diverse terrain, including dense jungle, breezy savannahs, and rocky areas.
Mount Lamlam holds spiritual and cultural significance for the Chamorro people, the indigenous inhabitants of Guam. It is considered a sacred place where the physical and spiritual worlds meet. Every year, many of Guam's devout Catholics trek up to Jumullong Manglo on Good Friday, the Friday before Easter Sunday.
A brief summary to Mount Lamlam Summit
Use Tower Bridge as your starting point for nearby food, family ideas, nightlife, and more local discoveries.
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