The final test on plans to raise the sunken Sewol-ho ferry was conducted on Sunday.
According to the Ministry of Oceans and Fisheries, a test on the cables connecting the hull of the ship and two jack-up barges that will bring it up to the surface was successfully completed.
However, the Coast Guard, working with a Chinese salvage firm, was unable proceed due to unfavorable weather conditions.
The team used the time to check all the wires and made partial repairs to prevent them from being entangled by strong underwater currents.
Once the vessel is hoisted above water, it will be moved onto a semi-submersible ship to a port in Mokpo, with the transportation process likely to take about 20 hours.
The ferry sank off the country's southwest in April 2014, killing 304 people, mostly high school students.