Hi. I'm down to one more Survival Cache and then I will have 100%. But I managed to make my way through the whole game and never understood what the tiny white triangles on the map mean. For example, in the attached image, there is a white Survival Cache icon with a tiny white triangle below it, presumably pointing south. What does the little triangle mean?

Hello.  I realise an answer 439 days later is not likely to be very helpful for you but if I remember correctly it means the thing is below Lara so find a ladder/cave entrance/whatever.

Hey better late than never! I'm sure I'll play again in the next month or two. Thanks very much.