Create a realistic image of a young woman with an athletic build enjoying a moment of relaxation beside a mountain stream. After bathing, she sits on a large, smooth rock near the water's edge, with her legs dipped into the cool stream. She is wearing a lightweight, moisture-wicking towel draped over her shoulders, and her athletic wear is partially visible, damp from the swim. The surrounding landscape features lush green grass, small wildflowers, and cascading water, with rugged mountains in the distance. The sun casts a warm, golden glow, highlighting her relaxed demeanor and the serene beauty of the mountain environment.