Video records of recent dive surveys of the wreck of the Rena show the size of the task still awaiting salvors.

A recent dive on the cargo hold in the ship's sunken stern section shows smashed containers, cargo and the fish that now inhabit the wreck.

The videos are made available by the insurers The Swedish Club, and can also be seen on the Rena project website, here.

Claims manager Captain John Owen says the action of the sea has layered the contents of the hold.

'There's all kinds of wreckage down there, pieces of container, and bits of what was in containers,” says John.

'Every now and again you see something shiny, when you see the shiny things, they are aluminium ingots.”

The small pieces have dropped to the bottom leaving the large pieces of wreckage on top.

'We are going to have to lift off the big pieces using a crane or lift bags. That will give us access to the smaller pieces and the ingots and pieces of container that are still on the site.

'Anything not steel or not heavy in my opinion it's all been washed away. It's superbly clean and there are masses of fish.”

The second video is of the dive survey undertaken last October/November that the salvors Resolve undertook on behalf of the owners.

It is part of a traverse of the hull sitting on the bottom. The video starts at the very aft section of the ship at a depth of about 65 metres.