South Korean Catholic, Buddhist, Protestant and other religious leaders are in North Korea amid signs of easing tension between the countries.
The official Korean Central News Agency says the delegation arrived in Pyongyang on Wednesday.
They're scheduled to meet with North Korean religious leaders and visit a famous mountain during their four-day trip.
South Korea has toughened restrictions on civilian travel to the North after a warship sinking that was blamed on a North Korean torpedo attack last year.
But Seoul recently allowed Buddhist monks and a prominent orchestra maestro to visit North Korea amid international efforts to resume negotiations on the North's nuclear ambitions. Nuclear envoys of the Koreas met Wednesday in Beijing.