time keeper’s crypt
The entrance to this Crypt is on the southwestern wall of the Lost City. Dive into a small area of water at the edge of the street, and swim underneath a tall building. You find a basement with a tunnel leading away from it. Follow that tunnel to reach the Crypt.
You find a Mural on the wall in the first major room. Break through a damaged piece of stonework to continue, and get a Document from the floor in the adjoining tunnel.
Mine some Chromite from the walls of the Crypt, and get a second vein when you reach a waterway ahead. Jump and grapple to the far ledge. That’s where the Chromite is located. You need to have Geologist to mine this metal.
Swim along the waterway to reach the final room of the Crypt. That’s where you get a few free Coins and the Sarcophagus with another piece of a special Bow.