The Hidden City – Abandoned Village - Chuki's Crypt (part 2)

Jump in the pool and swim straight down to the bottom, to find a survival cache (20/34) buried in a pile of stones surrounded by an eerie grouping of statues...corpses? Swim back up for air if necessary. Then return to the bottom and swim through the narrow opening to the east.

Head for the trapped air ahead and take a breath.

There's a barred doorway ahead on the right, but it doesn't open, so continue past it along the tunnel...

...around either side of a large, limestone column...

...and straight on to the next air pocket. Take a breath.

Then swim down and forward to find a relic (15/28) Lord and Lady of the Dead (Yucatec/Pantheon of Gods).

Take another breath if you need it. Then swim to the northeast corner of the cavern and up the submerged stairs to an air-filled room.

There's a spear trap just ahead. Cut the tripwire to trigger it. Then scramble under the spears.

Just around the corner is an archivist map (4/7). Examine it to reveal various collectibles on your map. Then jump in the water beyond the map and swim down and to the right...

...to find another survival cache (21/34). You're now on the other side of the bars you passed a little while ago. You can't get through there.

So return past the spear trap to the submerged stairs.

Swim straight across the cave to the wooden barrier with the bluish light seeping through. Pry the barrier away with your axe.

Then swim through the creepiest of narrow gaps...

...and on to another pocket of trapped air.

Beyond that, a green-lit stairway leads straight up to the crypt.