You will need to discover all the areas around the Lake of Nine. You won't be able to do this when you first reach the area, as you will have to proceed through the story in order to access some of the areas needed. You will obtain this trophy when you are going for all your necessary collectables, as you will have to visit each place in order to get them.

Here's a list of the areas you will need to find and the map of the area:

• Buri's Storeroom
• Cliffs of the Raven
• Council of Valkyries
• Forgotten Caverns
• Iron Cove
• Isle of Death
• Light Elf Outpost
• Lookout Tower
• Ruins of the Ancient
• Stone Falls
• The Mason's Channel
• Veithurgard