Life line to those of who live in remote areas

The barge came into our bay this morning, it would have been doing the 2 yearly mooring check on someones mooring. This is required by our local Council. You can see the mooring block just on the surface, under the bow. They have a GPS (somewhere?) that can then replace the mooring block on it's registered position.
This barge is a life-line to those in the Marlborough Sounds who do not have road access or in some cases it is preferable to use the sea rather than the roads, as in transporting logs.
They also can transport stock (sheep & cattle), vehicles ( like loaders, diggers etc that can't be driven on the roads), fuel tankers, salmon feed, live salmon after harvesting and even the sewage trucks to remote areas.
Barging has been a way of life in the Sounds, when my mother and father built the Hopewell Guest House in 1953, the timber was milled over in Manaroa and barged around to the site.
There are places in recent times that all the supplies have been barged to the nearby site, and then helicoptered up to the house site.