Going under Idaho can be extreme for a lot of folks. No, you’re not soaring through the trees or jumping off a bridge, but you are exploring a deep world of total darkness and very cramped quarters. The Silver Sage Grotto is off limits to all but the most experienced cavers. Our Jim Peck does not fit into that group, but a crack collection of guides led him and videographer Jay Krajic on this subterranean expedition. And, yes, they did make it out.