It doesn’t open till Aug. 1, but the CN Tower’s EdgeWalk – in which you walk around the outside of a ledge at, as the Star’s Dan Robson put it, “356 metres above sanity” – is already a hit.

Advance ticket sales have been brisk, and early reaction to the announcement seems to be typified by “It is sick. It is interesting. I will totally do it.”

In the meantime, here’s a peek at the kind of view $175 will buy you.