Hidden Forest and Arnold Ice Cave Trail is a 0.9 mile moderately trafficked out and back trail located in the state of OR that features a cave and is good for all skill levels. The trail is primarily used for hiking and is accessible year-round. Dogs are also able to use this trail.
Arnold ice cave was incredible. Very cold, damp and pitch black. Wear a headlight. At times challenging in relation to claustrophobia... tiny tunnels and chimneys of rocks to crawl and maneuver your body through. People have painted arrows on rocks to show you the way. Made it all the way to the "end" of the cave. You will see people have written their names. Very different type of "hiking" and cool experience.