The 82 elderly South Koreans who will be taking part in the reunion event arrived at the North's Mt. Kumkang resort at about 1 p.m. on Thursday.
The group crossed the heavily fortified border between the South and North Korea at around 10 a.m., escorted by officials from the South Korean Red Cross and medical personnel, in case one of the participants should encounter health problems.
And in fact, the group's departure was delayed as two female members of the group needed medical attention.
They ended up being placed into ambulances for their journey to the reunion site.
More than a dozen of the participants were in wheelchairs and needed help boarding buses, which they shared with a total of 58 family members who are going along to provide physical and emotional support.
"I couldn't sleep last night. I don't know what we'll talk about until I really meet them. I haven't seen them for more than 60 years."
The first meeting in more than six decades between family members from both Koreas is scheduled to begin at 3 p.m. and last for two hours.
They will then attend a welcoming banquet together later in the evening at 7.
During this first round of reunions from Thursday through Saturday, the separated South Korean and North Korean family members will meet on six separate occasions for a total of 11 hours.
This first group will return to South Korea Saturday afternoon.
The second round of reunions will begin one day later and last from Sunday through Tuesday, where 88 North Koreans will reunite with 361 of their relatives from the South.
Connie Kim, Arirang News.