The best way to reach it would be to spawn at the Stitches wayshrine, then follow the road southwest until you reach Cicatrice. Once you get there, turn east and head into the hills. The shard is near the top of the hill, next to a couple of stone pillars. You might also spot a couple of Khajiit facing the skyshard, with their weapons raised like offerings.
Their names are Saziza and Tashdu. We didn’t get the chance to talk to them since we were in a hurry, but it looks like there’s a story there. Maybe some weird desert cult? Or a couple of brave warriors preparing to take on the nearby dragon?