Which sentence in the passage contains a dangling modifier? Natural Stress Relief

Sometimes, when I am feeling stressed, I need to get away from it all. After a long day last fall, a trip to the forest was exactly what I needed. Walking through the woods, the autumn leaves were marvelous shades of red, orange, and yellow, made more intense by the sunlight. As I breathed in the scents of the warm fall afternoon, I felt tranquil. The crunching of twigs and leaves beneath my boots sounded like a calming symphony. Being out in nature is a remedy for stress. I do not think I will ever forget my relaxing trip to the forest.