Navy Divers and underwater welders rock!
This is our state-of-the-art radar/sonar equipped ship, sent to monitor North Korea’s nuclear tests. How the hell did they not see an enormous oil freighter? Was everyone on board asleep? Perhaps we should replace sailors with robots until Obama’s Navy is decommissioned.
Nothing down there a bit of Splash Zone and plywood (two layers, one inside, one outside) couldn't have fixed. ;^')
As a helpful hint -- cover both sides of outside, of the outside ply, and at least the side that goes against the inside hull of the inside sheet entirely with the compound --through bolt using marine stainless bolts and quality fender washers, make sure to cover the end grain of the ply, smoothing & tapering the splashzone compound onto the steel around all edges, and it could last for years (if it had to)...seriesly... In emergency situations it's faster than waiting around for underwater welders to show up. Just saying.