Mt. St Helens Snowshoe Tour to Ape Cave

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$95 for REI Members

$115 for non-members

8 spots left


  • Fitness level 3 Moderate
  • Minimum age 14
  • Group size 10 people

With an underground distance of 2 miles, Ape Cave is the longest continuous lava tube in the continental U.S. REI will lead you through a guided exploration of this geologic marvel at the base of Mount St Helens on snowshoes. After a 1-mile wintery travel above ground, we'll arrive to the Ape Cave entrance. Descending into the cave, the warm cave air rises, staying at a constant 42 degrees all year round. Be prepared to be underground for about an hour as we travel 1.5 miles in the darkness and return above ground at the trailhead. Snowshoes, trekking poles, gaiters, and headlamps are provided. This is an amazing winter adventure with or without snow!

  • Learn tips and tricks for easier snowshoeing
  • Learn about Ape Cave and Mt St Helens

What to bring with you


REI operates under a Special Use Permit issued by the U.S. Forest Service for guiding in the Gifford Pinchot National Forest.

Map image of Mount St. Helens - Ape Cave

More directions and information

Questions? Call our Local Experiences team at 1-877-819-3803 or email us at