Hi haven't really posted on this before so here goes.
I haven't got any screen shots or vids of me doing this but i can assure you it works. At the stairs to ZJ, the right ones, start at the top of the stairs with some speed increase (not tested how much needed I used aspect of the pack) , jump into the stairs facing downwards. Its about a 30 degree angle to the stairs and will take a few attempts if you haven't tried before. then, either run round the invisible walls round there or jump into the middle of the square (note: you will need some speed increase to get out of here as you gotta jump through the invisible gap by the door from a height.)
Now you basicly jump onto the pile of leaves, into the pit (this gets you stuck btw) and from there its just a quick stroll round the tree and you are in the water of ZA. Explore here till your hearts content

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This will seem completely unintelligible if you arn't familiar with ZA or arn't there yourself so check back when you are. Also, I am dyslexic
