Far Cry 2 had diamonds to buy weapons, Far Cry 3 had hidden memory cards, diary excerpts and hidden statues. Far Cry 4 had masks, letters, journals and prayer wheels, and Primal continues this trend with cave paintings. Hidden away in caves (where else?) and sometimes behind burnable debris or dying plant life are the paintings: pre-historical sketches of animals and other symbols of the time. A collectible stat is tied to finding all 22 of them in total, and what's good is that the caves seem as interconnected as ever, promoting you to dive below the surface and see what you can find.