Skip to main content
  • Find Your Adventure
    • Hiking + Backpacking
    • Camping
    • Parks + Wilderness Areas
    • Special Destinations
    • Ocean Beaches + Shores
    • Canoeing, Kayaking + SUP (Flatwater)
    • Snowshoeing + Microspikes
    • Swimming Holes
    • Mountain Biking
    • Mountaineering
    • Backcountry Skiing + Splitboarding
    • Lodging
    • Hot Springs
    • Cross-country Skiing
    • Rafting + Kayaking (Whitewater)
    • Wildlife Viewing
  • Travel
    • Top Picks
    • Road Trips
    • Itineraries
  • Video
  • Articles
    • Stories
    • News + Events
    • Conservation + Nature
    • Tips, Tricks + How-to
    • Leave No Trace
  • Become a Contributor
Home
Sign In

Outdoor Project

The ultimate adventure guide

Descending into the pit that leads to the Arnold Ice Cave entrance.
A view from atop one of the lava pits near the trailhead.
Staring into the abyss and sizing up the ice flow into the cave.
Preparing a safety line for the icy descent.
The frozen water for which the cave is famous.
Many sections of the tube are covered with piles of lava rocks from previous collapses.
Going around one of the cave's many turns.
They're called ice nubbins. Water drips constantly from the cave ceiling, freezes when it hits the ground, and builds ice stalagmites.
The entire cavern is filled with hundreds of these!
Ice nubbins illuminated by the camera's flash.
The ceiling has a unique gold algae growing on it.
A section where the cave narrows and visitors can crawl or power-squat and walk.

Outdoor Project

About Us

We believe good things come from people spending time outside. It’s about more than standing on the mountain top. It’s about nourishment and learning. It’s about protecting what sustains us. It’s about building relationships with the outdoors and each other.
 
We are proud members of  
FOLLOW US
  • Find your adventure
    • Adventure Guides
    • Travel
    • Video
    • Articles
  • Connect
    • Contact Us
    • Our Community
    • Become a Contributor
    • onX Backcountry

Join free

Sign up to receive our newsletter packed with the best adventure guides, travel ideas, news, and articles.
We promise not to annoy you, but if you wish, you may unsubscribe at any time.
Outdoor Project may earn commission on products purchased through our links, which supports the work we do for our readers.
© 2023 Outdoor Project. All rights reserved.
Terms + Conditions Privacy Policy Site Map