Songunsa is a temple in Ulsan that uses an abandoned mine cave as its main hall, located next to Jasujeong Cave Country in Sangbuk-myeon, Ulju-gun. Daeungjeon, Muryangsujeon, Geumganggul, a Medicine Buddha statue, and the Buddha's relics are all inside the stone cave, and there is also an experience where visitors lift a mysterious stone. Construction has continued since 2010, and reaching the prayer site inside the cave requires walking up a slope and stairs. The interior is damp with water droplets falling, and there are sections where visitors must bend over.