
Ape Cave is a lava tube cave near Mount St. Helens—ideal for moody, otherworldly interiors with dripping textures, low ceilings, and wet basalt textures. Expect mostly dark, cool conditions with limited access to deeper areas. Visit midweek for fewer tour groups and bring headlamps for safe navigation.

Ape Cave is a lava tube cave near Mount St. Helens—ideal for moody, otherworldly interiors with dripping textures, low ceilings, and wet basalt textures. Expect mostly dark, cool conditions with limited access to deeper areas. Visit midweek for fewer tour groups and bring headlamps for safe navigation.