There is a group of Seals hanging out here near the Illugastaðir farm.
How to find Illugastaðir seal watching:
Just park your car at a parking lot by Illugastaðir farm camp, continue by walk to the sea and then to the left. You are here in 5 minutes.
GPS coordinates of Illugastaðir seal watching: 65.606892, -20.890112 Take me there!