GUYS!
If this hasn't been thought of before, I could use some help - I heard when you want to go to the "opposite" side of the planet, you just add 180 to the co-ords - I'm not sure though, but please can someone help me with working out the co-ords for the picture I did below?
I've just tried to use notepad and a calculator to do it, but I don't think I'm doing it right:
-31.7877 -128.9711 (ruins we know of)
148.2123(+) 51.0289(+) (2nd ruins)
148.2123(+) -51.0289(-) (3rd ruins)
EDIT: Longitude won't go past 91.1xxx'ish... :/
http://i.imgur.com/nhcTWVk.jpg