That's deep sea vessels as opposed to inshore/territorial operations.
I've heard the distinction here as between blue and white water, which seems to make more sense. Coastal water is kinda white (waves and the wash), and it gets bluer further out when the continental shelf drops off. Blue and brown doesn't make as much sense to me, as I don't really envisage coastal water as brown. Though I completely understand why a Briton would envisage coastal water as brown (it wouldn't require much envisaging). Been to Maldon or Torquay recently, Borachio?
Clear inland waters are comparatively rare, I believe. Estuaries usually disgorge a fair amount of silt, but a lot depends on rainfall patterns as well.
The video looked new, so I don't think it's an old song. Any help?The one he compares it to is scientology.
