evidence: The source said that a promising solution to ease the border conflict between Thailand and Cambodia is to allow tourists to access the Preah Vihear temple on Si Sa Ket's ground and to allow tourists from Cambodia to enter Pha Mor E-Daeng in Khao Phra Viharn National Park. [...] Pha Mor E-Daeng, located on top of Khao Phra Viharn National Park in Si Sa Ket province on the Thai side, was once an entrance to the ancient ruins but the gate has been closed since 2008.