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Ape Cave Lava Tube
Ape Cave Lava Tube

Ape Cave Lava Tube Tours and Activities

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One of the longest lava tubes in North America, the Ape Cave Lava Tube, is in southwest Washington near Mount St. Helens.

Ape Cave is in the Gifford Pinchot National Forest south of Mount St. Helens, the Washington volcano that erupted in memorable fashion in May 1980. The lava tube wasn't created by the 1980 blast, however; a logger discovered it in the early 1950s, and local Boy Scouts known as the Apes did the first extensive surveys of the tube before providing the cave its name. It's believed the tubes were formed about 2,000 years ago, but these lava formations are unusual for this part of the world – most volcanoes in the area don't produce the kind of fast-flowing lava that formed the Ape Cave tubes.

There are two lava tubes at Ape Cave. The upper tube is larger, although the lower tube is easier to explore. Ape Cave is the longest continuous lava tube in the country at about 2.5 miles in total, and one of the longest on the continent.

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Cougar, WA, United States, Longview, Washington
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The Mt St Helens Adventure Tour from Portland

The Mt St Helens Adventure Tour from Portland

Discover lava tube caves, old-growth forests, waterfalls, and more on a guided tour of Mt. St. Helens. The park’s vastness and variety of attractions can be overwhelming on your own, but by visiting with a guide you don’t miss any of the highlights. Plus, you can learn about the area’s geology, ecology, and history—much of which you might miss if visiting the park on your own.
  • 11 to 12 hours
  • Free Cancellation

Frequently Asked Questions
The answers provided below are based on answers previously given by the tour provider to customers’ questions.
Should I book Ape Cave Lava Tube tickets in advance?
We recommend booking e-tickets ahead of time to secure your spot since Ape Cave Lava Tube can get crowded. If you book with Viator, you can cancel at least 24 hours before the start date of your tour for a full refund.
How much does it cost to visit Ape Cave Lava Tube 2021?
Currently, an entrance ticket to Ape Cave Lava Tube costs USD 295.00. Guided Ape Cave Lava Tube tours start around USD 295.00 per person.
What''s the best way to experience Ape Cave Lava Tube?
The best ways to experience Ape Cave Lava Tube are: