During our drive through YoHo National Park in Canada, we where trying to find a waterfall, but the road was already closed for the season. When we where driving back to the main road, we saw that there where some gaps forming within the clouds. While I searched for a place to park my car beside the road, the trees came through the clouds and a bit of the mountain was coming through as well. This was a scene that happened for around 5 minutes before the clouds came back and it was completely gray again.