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Mt. Lamlam: Guam's Highest Peak

Hike to Guam's highest point, offering panoramic views and a unique claim as the world's tallest mountain from its base in the Mariana Trench.

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Mt. Lamlam, meaning 'lightning' in Chamorro, is Guam's highest peak at 1,332 feet. Though modest in height, it's famed as the world's tallest mountain when measured from its base in the Mariana Trench. The well-marked trail offers stunning panoramic views and a chance to connect with Guam's natural beauty and Chamorro heritage.

A brief summary to Mt. Lamlam Actual Peak

  • 8MQ8+V7J, Hågat, GU

Local tips

  • Start your hike early to avoid the heat and enjoy cooler temperatures.
  • Bring plenty of water and snacks to stay hydrated and energized.
  • Wear comfortable hiking shoes for better traction on the trail.
  • Don't forget your camera to capture the stunning panoramic views from the summit.
  • Check local weather conditions before hiking to ensure a safe and enjoyable experience.
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Getting There

  • Car

    From Hagåtña, head south on Route 1 (Marine Corps Drive). Turn left onto Route 4 and continue until you see signs for Mt. Lamlam on your right. Turn right onto the access road leading to the trailhead. Park in the designated area near Cetti Bay Overlook. Parking is free. The trailhead is located across the street from the overlook.

  • Public Transport

    From Hagåtña, take the Guam Regional Transit Authority (GRTA) bus towards Hågat. Check the schedule for service times. Inform the driver of your destination, near the access road to Mt. Lamlam. From the bus stop, walk approximately 0.5 miles to the trailhead. Bus fare is approximately $3. Be prepared for a walk, and check local bus schedules for accurate timing.

  • Taxi

    Taxis are available from major hotels and shopping centers in Guam. A taxi from Hagåtña to Mt. Lamlam will cost approximately $65 - $80. The taxi will drop you off at the parking area near Cetti Bay Overlook, across from the trailhead.

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Discover more about Mt. Lamlam Actual Peak

Ascend to the summit of Mt. Lamlam, Guam's highest point, for breathtaking panoramic views and a unique hiking experience. While not towering compared to other mountains, Mt. Lamlam holds the distinction of being the world's tallest when measured from its base deep within the Mariana Trench. This geological wonder offers a rewarding trek and a chance to immerse yourself in the island's rich history and stunning landscapes. The well-maintained trail, approximately 1.5 miles long, welcomes both seasoned hikers and families seeking an outdoor adventure. As you ascend, you'll be surrounded by Guam's diverse flora and fauna, with the sounds of nature accompanying your journey. The path leads you through varying terrains, from dense jungle and breezy savannahs to rocky sections. Along the way, discover a small grotto with a Virgin Mary shrine, a testament to the island's deep Catholic faith interwoven with indigenous traditions. At the summit, be rewarded with sweeping 360-degree views of Guam's mountains, coastline, and the vast Pacific Ocean. Capture the beauty with your camera, reflect on the accomplishment, and feel a sense of connection to this unique island. Mt. Lamlam is not just a hike; it's an experience that blends natural beauty, cultural significance, and a touch of geological wonder.

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