Re: Detroit river
Well you won't have to look far, Humbug Rack n' Launch is where I am at too, been there since 2007 (this is a new boat for me this year, but had my 211 Liberator there prior to it). It's getting worked on right now but will be back in a week or so.
And yes those requirements are similar to what they were, be careful though, if you don't have the pass, you can't call in from a designated phone while you are on the water and if you throw an anchor (at crystal bay for example), that's the same as stepping on shore. You used to be able to get away with tying up to other boats to avoid this, but I think that has changed as well. I actually had to take my boat to customs before to register it...I didn't read far enough to see if that's still the case.
On your boat you should have a pump out head so this probably doesn't matter, but porta potties are ILLEGAL in Canada, so don't get caught with one there. It's a fairly hefty fine.
FYI Drew and Mark -- the dock guys are AWESOME there, I hate that marina, but the Rack n' Launch is the newest in the area, and the docks are great -- onky at the rack n launch, the rest of the marina looks like they may fall over at any moment... The Gibraltar boat yard is nice though, located right smack in the middle of Humbug. It's odd, I know.
Anyway looks like I'll see you around. Drew will give you his personal cell # so you can call him directly to have your boat thrown in, I don't think Mark will, but he's super helpful if he is not busy. Drew is usually there on his motorcycle and mark will have his F-250 -- not sure if you've met them or not ye, just an FYI.
Drew refers to me as "Captain Work Rat" since I'm always there working on my stuff, I'm a bit anal...and my stuff always looks mint. You'll see