PYONGYANG, Sept. 20 (CGTN) -- Kim Jong Un, leader of the Democratic People's Republic of Korea (DPRK) and Moon Jae-in, president of the Republic of Korea (ROK) embarked on a rare trip on Thursday to Mount Paektu (also spelled as "Paekdu") in northern DPRK, according to Yonhap News Agency.

The trip was designed to enhance their personal ties and also highlight the success of their summit in Pyongyang.

Kim and Moon left Pyongyang's Sunan International Airport shortly after 7 a.m. local time, each using their own presidential jet. The leaders began their joint climb in a vehicle after arriving at Samjiyon airport near the mountain.

They will return to Pyongyang later in the day when the ROK president is also set to return home.

Situated on the border with China, Mount Paektu is one of the most famous mountains on the Korean Peninsula. Only a handful of South Koreans have ever visited the mountain from the DPRK side, according to Yonhap.

It is the third and final day of Moon's visit to the DPRK, where the two leaders held the third inter-Korean summit this year. On Tuesday, Kim and Moon signed a wide-ranging agreement on denuclearization of the peninsula and further rapprochement measures between the two countries.