Thailand's Royal Barge Procession (Thai: กระบวนพยุหยาตราชลมารค; RTGS: krabuan phayuhayattra chonlamak) is a ceremony of both religious and royal significance which has taken place for nearly 700 years. The royal barges are a blend of craftsmanship and traditional Thai art. The Royal Barge Procession takes place rarely, marking only the most significant cultural and religious events. During the long reign of King Bhumibol Adulyadej, spanning over 70 years, the procession only occurred 16 times.