So I rarely give 5 stars to anything. I loved this hike. Something interesting to see at pretty much every step with variety and beauty. Starts with nice forest and a beautiful river with multiple waterfalls. Then you break out to beautiful rugged views and rock fields in avalanche chutes. Meadows and old growth throughout. Wonderful views of Mt Baker along the way and the Olympics at the top. It is strenuous, and a constant climb. Per our garmins 5.6 miles each way to marmot pass. But so worth it. The day we went was beautiful and clear.