Item description:

Sightseer trophy

Resign with SW first.

On the game starting up, select main game and then continue.

When the game loads, instruct Elizabeth to pick the lock of the door. This takes a while, so you can scavenge the room if you want.

Once the door is opened, kill all the enemies (it’s on easy so should be no trouble) and then follow the path round to the right, towards the barge. Before you get on the barge though, there is a telescope on the left, which once you look through and back out of, will reward you with the trophy.