Where is the glass walkway, is it on the South rim or the North?

West rim

It is on the West Rim. I have only been to the South Rim and the North Rim.

It's on the Las Vegas side west side pretty freaky looking down gives you vertigo but you have to see it!

It's closer to Las Vegas on the west rim, there is also the north rim, by the way there is a trailhead going from South to North rim

South West Rim near Las Vegas