The Crypt Lake hike is an interesting one. To an experienced mountaineer, it's not really very difficult, but to the average tourist it is definitely an adventure.
The first part of the hike is a steady ascent up the valley. Once you break out of the forest the steep parts start, but there are switchbacks to make the climb easier. Stick it out, and you eventually reach the exciting part. It begins with a walk across a cliff face on a narrow track. The width is about two or three feet, but there is a steep slope on your right. If you slip, you will slide about 600 ft before you stop.
When we got to the start of the traverse, we met a woman and her boyfriend; she had gone about 10 paces out on the ledge than frozen in fear. It took him five minutes to talk her back to safety. I took a group up there, and had to talk three of 11 people across that stretch,
At the end, you get to a steel ladder about eight feet high. Not too bad, unless you look down. You then crawl trough a short tunnel about 20 ft long and come again onto a ledge. A few steps, and you begin the scariest part. There is a cable to hold onto and it would be safest to wear a harness and clip yourself to it, as I saw a mother do with her 14 year old daughter. Most people just grit their teeth, hang on to the cable with both hands and scramble up. Be aware that a slip here doesn't lead to a slide down a slope, but a 600 ft. free-fall off a cliff.
The last section is an easy walk through forest to Crypt Lake. There's really nothing special about it except its location, but it is pretty. Surprisingly, the fishing is also good.
Of the people in my group, those who weren't afraid of heights thought it was an exciting hike. For the rest (probably over half) it was the adventure of a lifetime, something they weren't sure they could do, and were very proud of succeeding at.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC