I'm at the point in the game where I have 14 out of 15 parts installed including the power source in the communications device and I realise I did not grab one debris piece in the "highlands". The only way out of the island where the communications device is seems to be the ice cave. But I don't believe this leads to the highlands and it took everything I had just to get out of the ice cave. I can't find a reasonable map anywhere and I've been stuck here for quite some time. In at the point of giving up but i figured I'd give this forum a little shot. Any help getting back to highlands? Great game BTW! One of my favorites!