Dark Souls 3 ▶ How to Unlock the Undead Settlement Sewers Shortcut
From the Cliff Underside bonfire, proceed onto the roofs and drop down onto the courtyard with the patrolling Evangelist. Proceed towards the right and down the ladder leading into the sewers. At the end of the sewer is another ladder leading up to the iron gate leading to the Dilapidated Bridge bonfire.
