This is the day that could be the beginning of the end of the wreck of the Costa Concordia.
The complex and painstaking operation to right it, refloat it and tow it away for scrap began early on Monday.
It's expected to take about 12 hours to roll the 114, 000 tonne wreck upright.
Salvage master Nicholas Sloane said ahead of the start of the operation that the wreck responded positively in tests.
(SOUNDBITE)(English) SALVAGE MASTER NICHOLAS SLOANE SAYING:
"We got a rotation of 0.15 degrees or about 10 centimetres at the maximum test and then it came bak to about three, four centimetres so we know that with four sponsons she was lively enough to show us that she's ready to move."
The Costa Concordia's lain partially submerged in shallow waters off the Italian coast since January 2012.
It hit a rock when it manoeuvred too close to land.
At least 30 people died when it capsized.
Another two people are still unaccounted for.
The c
