ACCESS THE CRYPT
From the Wild Jungle Base Camp in the Paititi wilderness (which you can activate via the Draw Weight Heavily side mission) follow the water along to the left.
Note: The rocks are lined with yellow paint, signifiers of challenge tombs. Here, you can also access the Path of Battle challenge tomb located underwater.
Climb into the tree on the left and swing over to the handhold on the side of the cliff. Shimmy right and around the corner to wall scramble up to the next ledge. Go right again until you can climb onto the walkway.
Pick up Document – Warning sitting on a statue, then make a big jump across to the other side and balance along a log to the next cliff face. Climb to the very top to reach the entrance to the crypt.
FIND THE SARCOPHAGUS
Run forward through the tunnel and hop over the collapsing floor along the way. Pick up Relic – Arrow and continue onward to squeeze through a crevice in the wall. Pick up Document – More Questions, then head left to duck through the next tunnel.
At the end, the path splits. Head left for some Gold and extra resources, but then return to the path on the right to reach the large chamber. The sarcophagus is in the room ahead, but you can’t reach it from here. Instead, drop down to the bottom of the chamber.
Examine the mural at the back of the room before heading for the weak wall. First, scramble up the wall next to it to pick up Document – Merchant Sacrifice and then continue.
Jump forward and throw out the Grapple Axe to swing across the hook and over the pit of spikes. In the next room, head to the back – take a quick trip left through the door for an Archivist Map and some Jade bricks. Return to scramble up and attach to the craggy wall.
Make your way up and move forward to balance across a beam – from here, jump over to the room and loot the sarcophagus.
EXIT THE CRYPT
Leave through the doorway behind the sarcophagus and tether a rope to the beam on the opposite side of the chamber. Crawl across the rope and simply follow the path right back outside.
Make sure to swan dive off the wooden platform into the water below for the High Diving region challenge.