Skyrim 100% Maximized Legendary Playthrough - 487. Under the Sea

We begin as promised last time by heading to Yngol Barrow, making sure to take the coral dragon claw with us that we got from Birna in Winterhold way back at the beginning of this playthrough. Interestingly you don't have to get the claw from Birna - if you just go to the Barrow you can find it inside if you haven't purchased it from here.
The Barrow is short and has no enemies besides the shade of Yngol at the end. It also has the bouncing blue lights that follow us around that never really get explained either. But in any case we quickly arrive at the end and claim the Helm of Yngol as our own.
The only part of exploring Winterhold left is to do some underwater exploration. Starting at the Barrow itself and borrowing Serana's Wraithshadow Circlet so we can breathe, we start exploring underwater all around the coastline and islands, working our way west until we end up just south of the Wreck of the Pride of Tel Vos as the light begins to fade.
As with previous explorations like this, it nets us a lot of fish, clams, and barnacles, but not much else. But this is a 100% playthrough, which means finding all those barnacles the developers put in out of the way places underwater just to be cheeky. I don't know if we can finish the rest of the ocean in only one more video, but we'll give it a go next time.