How to get to the watcher Hello Everyone!

Been playing through the game now trying to find the watcher (have killed The Assassin already) basically just want to kill the watcher and get all runes so I can get to all areas but I cant seem to find the graveyard (When I googled thats where it said to go may be outdated)

The entrance for the graveyard is supposed to be in the fog fjord but all I have found are doors to forgotten sepulcher and Clock tower. Any ideas or is there something I am missing? Thanks in advanced!