We tell you how to get to the Witcher's castle during the passage of the story campaign of The Witcher 3: Wild Hunt
To get to Kaer Morhen Castle, you first need to complete part of the story quests. After you complete the " Band of Brothers " quest, the " Isle of Mists " quest will become available to you. Before completing this quest, be sure to complete all the side quests that were available earlier, because after that you will not be able to return to them. Follow the quest, after which Geralt will go with Ciri to the Witcher's Castle.