Hazy reflection

When I arrived at this lake, it was crystal clear with perfect reflection of the mountains. A couple minutes passed and I turned my back to take a selfie. My screen was showing me fogs. I thought the lens was dirty and wiped it off a few times to no avail. I even restarted my phone and while waiting for it to turn on, I turned back to see the lake, which was covered with fog. How funny! I laughed at myself, hearing my echo in the surrounding silence. I waited a few minutes and the lake cleared just enough to show this reflection, all the while leaving the traces of the fog over its horizon!