The Witcher 3 Guide: How to find Places of Power in White Orchard

Cackler Bridge 

From that northern most Place of Power, you’re going to head southeast on your map, or just fast travel to the Cackler Bridge signpost. From here, head east and follow the path for a few seconds. To your left, you’ll see the Place of Power surrounded again by some level two ghouls. Kick their asses and extract that skill point. Again, there is a nest here so destroy it if you’ve got the items.