According to a drama associate on August 12, "The two are filming for the new SBS Wednesday-Thursday drama 'Legend of the Blue Sea' in Palau and Spain. They are visiting Palau at the end of August and Spain in September. The reason they are filming at an overseas location is to capture clear blue ocean just as it's stated in the drama title."
'Legend of the Blue Sea' is written by the same hit scriptwriter who wrote 'You Who Came From the Stars', 'Producer', and more. The director also took part in many hit dramas such as 'City Hunter' and 'Doctor Stranger'.
The drama starring Lee Min Ho and Jun Ji Hyun will air in November.