As one person’s comment noted, this one is a mushroom jumper. The starting point is west of the Caer Shadowfain POI and outpost. The starting point to the path up looked obvious to me. There are a couple confusing spots getting up to this vista where it looks like you could jump either direction. For the most part though, getting this vista is a no brainer once you find the starting point.
The vista in Compass Plaza is right above the outpost you visit. You have to travel a little bit away from the outpost to look up and see it. It’s a pretty simple vista to get to. It starts right below the arch backing the outpost, but it has one catch. The glass you travel up has holes in it. I followed the seaweed growth and had no problems. On my way down was another story as I almost took a header into a pile of Risen mobs.