A South Korean task force left for North Korea Wednesday to inspect facilities at a Mount Geumgang resort where family reunions will be held next month.
The 14-member group composed of officials from the Ministry of Unification and the resorts owner Hyundai Asan will return to the South on Thursday.
Meanwhile, South Korea's Red Cross has begun confirming the living status of 200 candidates who could participate in the reunions, which will begin October 20.
The Korean Red Cross is comparing the list it received from the North with its database of 60-thousand separated family members by name, region and address.
The Red Cross said it will use the government's electronic administration network or ask for cooperation from local governments and police if it encounters difficulties in locating the family members.
The two Koreas will exchange the living statuses of reunion candidates on October 5.
A final list of 100 participants from each side will be exchanged on October 8, following health checks and determining the willingness of candidates to participate in the reunions.