2.5 miles of underground adventure – this is the Ape Cave. The cave is actually a massive lava tube that you can explore on your own. There are lots of fascinating rock formations and petrified lava flows, so take your time to investigate this unique tunnel. In some sections you will have to scramble over large boulders. Bring at least two sources of light and a jacket: it is chilly in there.

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1. Ape Cave Trail – Mount Saint Helens National Monument

6.11km

01:43

130m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Elevation 690 m

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Friday 6 February

13°C

4°C

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Location: Skamania County, Washington, United States

Other Popular Places to Check Out

Loowit Trail / Monitor Ridge junction

Trail of the Two Forests

Ape Cave Interpretive Site/Lower entrance

Johnston Ridge Observatory

Ape Canyon Trail

View of Mount St. Helens from Boundary Trail

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Mount Margaret

Ape Cave-Upper entrance

Volcanic Viewpoint Trail

June Lake Trail

View of Mount St. Helens

Within the Ape Cave

1. Ape Cave Trail – Mount Saint Helens National Monument

Other Popular Places to Check Out

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