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.
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![]()