Depending on where you look Kendall Katwalk is between 10 and 12 miles round trip. I believe it is 12. It is an easy hike in terms of the elevation gain of only 2,600 feet, but it is a long hike, especially if you extend it. You can hike as far as you like on the Pacific Crest Trail and it is tempting.
The trail begins flat and continues that way for a while. Then there is a gradual increase in gradient, never really getting “steep.” If you go early enough so you are hiking at sunrise you will see light shine off peaks in ways the take your breath away.
It is almost like strolling through a park until you get past the avalanche shoot. Then it gets a little steeper.
Yes there are rocks, but not like Mt. Pilchuck. Still you really need some good hiking boots for these things. You will probably hear or see Marmots.
The rocks and the distance do wear on your feet, so even though it is not steep, it is challenging.
From Civilization To Wilderness
For most of the hike you can hear or see the Freeway. There are great views of peaks and even Mount Rainier. You can look down on the Snoqualmie Ski slopes. However, I never really feel like I am in the mountains until I get to Kendal Katwalk. Once you cross over to the other side it is a whole new experience and as I mentioned, you can continue the hike for miles. I have gone as far as Joe Lake, which makes the trip about 20 miles round trip. Extending it just a couple miles will bring you to a couple of beautiful lakes that make it worth it.