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Explore the Majestic Depths of Ape Cave

Discover the thrilling underground world of Ape Cave, one of the longest lava tubes in the U.S., nestled in the stunning landscapes of Washington State.

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Nestled in the heart of Washington, Ape Cave offers an extraordinary underground adventure for tourists seeking to explore the wonders of volcanic geology. This remarkable lava tube, formed by ancient volcanic activity, stretches over 2.5 miles and is one of the longest caves in the United States. Adventurers can traverse its winding passages, marvel at the unique rock formations, and experience the cooler temperatures within, making it a perfect escape during warmer months. Whether you're a seasoned spelunker or a first-time visitor, Ape Cave promises an unforgettable journey into the natural beauty of Washington's landscape.

A brief summary to Ape Cave

  • Washington, US

Local tips

  • Wear sturdy shoes with good grip as the cave floor can be uneven and slippery.
  • Bring a reliable flashlight or headlamp, as some areas of the cave are completely dark.
  • Check the weather before your visit; the cave temperature is significantly cooler than outside.
  • Consider visiting during weekdays to avoid crowds and enhance your experience.
  • Don't forget your camera to capture the stunning geological formations!
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Getting There

  • Car

    If you're traveling by car, start from the Mount St. Helens Visitor Center located at 42218 NE Yale Bridge Rd, Amboy, WA 98601. From the Visitor Center, head southeast on Yale Bridge Rd toward WA-503 N for about 1.5 miles. Turn left onto WA-503 N and continue for approximately 5 miles. Turn right onto FS-90 (Forest Road 90) and follow signs for 'Ape Cave'. After about 10 miles, you'll arrive at the Ape Cave parking lot. Please note that a National Park pass and a $5 parking fee are required to park.

  • Public Transportation

    Using public transportation can be a bit more challenging, as direct options are limited. However, you can take a bus from Portland, OR to Amboy, WA (check local schedules for the latest routes). From Amboy, you would need to arrange for a taxi or rideshare service to the Ape Cave entrance, which is approximately 12 miles away. Ensure you confirm your transportation in advance, as services may vary.

  • Walking

    If you are already at the Ape Cave parking lot, the entrance to the cave is a short walk from the parking area. After parking, follow the marked trail leading to the entrance of the cave, which is about a 0.5-mile walk. Be prepared for uneven terrain and wear appropriate footwear.

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Discover more about Ape Cave

Ape Cave, located in Washington, is a geological marvel that offers visitors a glimpse into the fascinating world of lava tubes. Created by the eruption of the nearby Mount St. Helens, this expansive cave stretches over 2.5 miles, making it one of the longest in North America. As you venture into the cave, you will be greeted by stunning rock formations, intricate textures, and the cool, refreshing air that starkly contrasts the outside world. The cave is divided into two main sections: the upper and lower passages, each presenting unique features and varying levels of difficulty. The upper passage is more accessible and includes a well-maintained trail, while the lower passage offers a more rugged and adventurous experience for those looking to explore deeper into the cave. Hikers are encouraged to bring headlamps or flashlights, as the cave is completely dark in areas, and proper footwear is essential due to uneven surfaces. The experience is not only about exploration; it's also an educational opportunity, as informational signs throughout the cave explain the geological processes that formed these remarkable structures. Remember, a National Park pass is required for entry, along with a nominal parking fee. This hidden gem in Washington is a must-visit for any outdoor enthusiast, promising both adventure and awe-inspiring natural beauty.

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