How do you go to Nidavellir in Grizzlehiem?

To reach Nidavellir in Grizzlehiem, you need to first complete the main storyline quests in the Grizzlehiem area. After progressing through the quests and defeating the necessary bosses, you will unlock access to Nidavellir. Look for the entrance marked by a portal or a specific location in the region, and interact with it to enter. Make sure to be prepared for the challenges that await you inside!