Im at The Isle of Saint Mary and do not know what to do hel

Im at The Isle of Saint Mary and do not know what to do help...?
I really havn't a scooby on what to do here can anybody give us a clue?

There are symbols and numbers/letters hidden on the different trees. Click along and look REALLY carefully along the whole tree top to bottom for all the info. I propose writing them down so you may be able to easily match them. Start with the "0" with the full circle over a half circle and match the bottom symbol with the top symbol on one of the others to get the pattern. By "match" I mean make full circles eg. a crescent and an ellipse make a full circle, as do two halves and a ring and a small circle . There are eleven digits five on the NS axis and four on the EW as well as the directionals.

I am now on Cozumel. I figured out the coordinates but I saw the pattern Rain Man style so I can not explain it. They happened to be right but I'd like to know why. Can someone explain not why I'm strange but how to decode the wall for real ?

0112n10347e

So if the seven comes after the E and the symbol over the E has to the reverse of the symbol over the 1st digit, then by adding diagonally I could end up with the symbols over the E.. which are the whole figures where as the rest of the numbers are the parts.by the way the answer to the solution is "remains" which translate into parts.

I'll attempt that..