Bee - The "windows" are a series of spots between the John Muir Trail junction and the summit where there are steep drop offs on both sides of the trail. The west side drop off is, maybe, 60 degrees to vertical. The east side is essentially vertical. The trail here is about 6 to 8 feet wide - as wide as an average sidewalk. These spots, three or four in number, are like 10 feet long. They generate a certain amount of fear among newbies, but are really nothing to worry about. However, if you wandered close to the east edge and stumbled for some reason or got hit by a sudden blast of wind, you could go over the edge.
