Alright, I read through.
I like what you've done here aesthetically; it's really quite a pretty pdf. And the tone is fun. But I'm not sure how game-able it is. I'd have a hard time actually applying this at the table.
Part 1 is in-character to a fault; most of this is advice for the PC, not for the person playing them. So I'm not sure how it's meant to be used.
Part 2 would really benefit from some examples. Maybe a full worked example of play. I'm not clear on how we're meant to assemble the various descriptors into a Way, and some of these descriptors are perplexing in and of themselves. Also, probably better to use fudge dice for the tables. I've had some luck with triangular random tables where the top left corner is all zeroes, and you move a step right for each + and a step down for each -. Not my idea, but I can't find the original post.
Part 3, I think, needs to explain its numbers more. What does it mean if Accessibility is Good or Danger is Superb? Also, I'm not sure it's advisable to have single entries for such vast and varied regions.
More specific comments:
Since we all have a brain, eyes, a limited
number of senses, but more importantly, a tragic lack any kind of
omniscience, it isn't really possible for any of us to really wrap our
heads around the impossible strangeness of it all.
Missing the word "of" after "lack", I think. Also, it's just a bit of a clunky sentence.
Conversely, Lurkers are entities who roam the Ways and prey
Travelers.
"on" travelers, I think.
You won't be surprised to hear that most stables outdoor skills,
gear and survival kits will serve you well out Wayfinding.
"stables" can't be the right word. Maybe you were going for "staples"? But that would still be questionable grammatically.
Before you even think about crossing a Way, you have to find one
first. For most folk, that presents at least a Good (+3) challenge to
Scholarship, upgraded to Great (+4) if you want to go somewhere
specific.
Scholarship seems like the wrong skill. Also, if I want to find a Way, how many stipulations do I get to make? Can I roll to find a Way to The Outer Gates? To the Statue of Liberty, through the Nevernever? From my house?
Living long enough to retire as a Wayfinder is all about
knowing how to read the signs. There's no universal language for
this stuff, so it has to be learned from experience. My advice?
Find someone who cares about you enough to teach you. Not
me, mind, but someone.
Looking for Wayfinder signs is usually a Great (+4) challenge to
Investigation, though it can be higher or lower based on how
frequently Travelers go through the Region. If a place looks
outright deadly, it probably is, and it isn't likely to have any
Wayfinder signs no matter how keen-eyed you are.
There should probably be some mechanics for interpreting signs, since it's clearly not a universal ability. Perhaps a stunt?