From what I've seen and heard from many local divers, the Nautilus is terrible for raping and pillaging the bottom, its one thing to grab the odd goody, but a steady assault on are waters, especially the inside waters is a tragedy, I've been diving the entire B.C. coast from border to border for almost 15 years now and I've had one to many dive spots picked clean of life.. i'm all for the livaboards, it is the only real way to see our beautiful coast, I also enjoy my seafood but some critters don't recover as fast as others, need I mention the abalone?, nothing worse then seeing a rock wall picked clean of old rock scallops.. nothing but white scabs to remind of what was... respect the sealife, its all I ask, just my two bits.. thanks..