Guide:
This shard is located inside solo dungeon Klathzgar. Entrance to the dungeon is marked on the big map of Bangkorai, while the collectible’s location is marked on the screenshot of the dungeon’s map bellow.
The skyshard you are out for is inside the southern part of the ruins. This is one of the most unique surroundings found in the dungeon. What makes it unique is the view from near the shard. A perfect place to make several screenshots.