does anyone accually know the coordanites to get the hell out of the forrest on saint mary?

Answer 1

The keyword to accessing Saint Mary is Count, which is a hint as to what you must do on this island... count the rounds of the ladder.

The first round says 35, and tells you to go up 35 rounds to the next round which tells you two things, a coordinate and the number of the next round you must visit. They are:
START 35
1 - 64
7 - 16
0 - 96
6 - 11
S - 15
4 - 72
9 - 58
4 - 8
8 - 90
E

Put them together and you get 1706S4948E

Answer 2

What are you talking about? A landing zone or what?