What could go wrong??? That's a whole other can of worms we've not even touched on yet - as you can see from even the ARSBC literature, sinking a ship is not exactly an exact science - from turning on it's side, to moving position etc - and as noted again on the ARSBC website, the sink site is actually quite specific in acceptable orientation - any deviaton and now you are potentially affecting marine traffic.
Or, for another arguments sake - what happens if, as the DFO officials want to avoid, you now cover up 1,400m2 (DFO estimate) of sea bed - and just to play devils advocate what if that is enough to completely decimate the local crab population that has been haning on by a thread?
None of the above are givens, but merely possible "what could go wrongs" that you are obviously willing to risk for a new "reef" when the bay is surrounded on 300deg of existing "reef" (the rock walls of the bay).
Since Porteau has proven to be a successful site (primarily since there are no natural structures nearby), why not sink this one there? Make a good site even better, keeps the habitat happy, keeps the users happy, win/win. Not only that, but keeps it a shore dive opportunity - keeps it accessable to more users.
Alrighty - I'm gone for a day and look what happens.
So we won't be taking your sailboat.... I wonder if we may be able to hitch a ride out with someone with a faster boat?
Since it seems your desire to boat and anchor in 100' of water outweighs diving, I can't forsee us coming to a happy agreement.
I know the layout of the sink site, as I was one of the volunteers that did the depth survey. This was done a different day of Bob's video, and I can say I only saw one crab, not 2. Otherwise, just a few things on the garbage that was dumped (probably) by pleasure boat users.
-On a side note, to the locals of the area: While doing our survey dives, we were quietly anchored during our Surface Interval, enjoying a quiet lunch, with a few laughs. During this time, we witnessed at least 1 (possibly 2 or more, I'm a little fussy on this particular detail) power boat, being piloted in what I would call an 'aggressive' manner within the bay - full power, close to shore, etc. - while blasting loud music and with beers in hand (we could make out the cans when they came close). Perhaps the extra few diver boats will make the area a little less desirable to the rowdy groups, and make for a quieter area? Of course anyone is welcome in teh bay with the dive boats - as you say, people anchor there (generally not near teh sink site) to enjoy the natural surroundings. That's exactly what we're doing - but our enjoyment is above and below the water ... in a way, we're enjoying the area more.
The bottome consistancy is not 'mud' as you would find in other places in Howe Sound. You can pick it up and tell it's different - It's gooey. Have you ever been diving in a small, fairly stagnant lake with lots of trees around? The bottom is pretty similar - slowly rotting material - it's not gravel, it's not soil, it's not solid. In short, not a place sea life seems to like.
If the ship managed to sink onto it's side, the marine traffic would be less 'hindered' as the beam of the ship is only 40', rather than the approx 95' height. Sure, it will be a little more one way or the other, but not substantually, and again, in water deeper than boats typically achor in.
If it comes to something as sensative to a local crab population (using your example) that suddenly pops up in the next few months, Id be happy to do a quick survey dive on the morning of sink day to make sure they're not under the boat.
From what I saw of the shoreline area, it's not a drop-off in teh water - it's actually pretty much a slope - so nowhere for the life to attach too. (I KNOW between the sink site and shore it is a shallow angle up to 60'. I'm not sure how much longer this continues on it's way to the surface, but I think it's safe to say the opportunity for a reef to form is limited in the immediate area of the sink site.
Porteau is not a suitable site, for a variety of reasons. One I know is that the ARSBC does not want the ship to be a shore dive ... this is not to line the pockets of charter operators, as the opposition claims, but to purposely limit the number of divers at any one time. This has several beniefits, some for divers, some for the environment. (One for each: Less people at a time = lower chance of someone else silting you out. A break in the time between groups, allowing the reef animals to go about their activities undisturbed.) Anyone with a boat, that can rent a boat, build a boat, borrow a boat, etc, will have access, at no fee.
I do find it interesting that you feel that because you have used the above water area of the bay, you feel that there cannot be any good coming from the below water area. Just because it looks good on the surface, doesn't mean it continues down below.
In extension, most sea life, like seals and such will not be near the bay on sink day, as there will probably be a lot of extra boat traffic in the area that day - including (I'm assuming) a BC Ferry that will come with people to watch, as is the tradition when a ship goes down.
To follow with Bob's example ...
I am NOT an agent of the ARSBC. I do volunteer with them, and talk with them while doing so. The opinions & views expressed in this message are my own.