Thailand's King Maha Vajiralongkorn and Queen Suthida arrive for a royal barge river procession along the Chao Praya river as part of the year-long celebrations of his coronation in Bangkok, Thailand, December 12, 2019. Aboard a golden royal barge, King Maha Vajiralongkorn was rowed along the river winding through the oldest part of Bangkok on Thursday, as thousands of loyal Thais thronged the banks to see the final ritual of his drawn out coronation. Thailand Royal Household Bureau/Handout via REUTERS

Thailand's King Maha Vajiralongkorn is carried on a sedan-chair during the road procession, after taking part in the Royal Barge procession near the Grand Palace in Bangkok, Thailand, December 12, 2019. King Vajiralongkorn, also known as King Rama X, was formally crowned in May, during three days of ceremonies filled with ancient Brahmin and Buddhist rituals, but the barge procession marks the monarch's last journey in his ascent to the throne. REUTERS/Chalinee Thirasupa

Thailand's King Maha Vajiralongkorn and Queen Suthida take part in a royal barge river procession along the Chao Praya river as part of the year-long celebrations of his coronation in Bangkok, Thailand, December 12, 2019. Dressed in ceremonial costume, some 2,200 oarsmen rowed the wooden vessels along the 3.4-kilometre (2-mile) route, keeping time with the help of chants. Thailand Royal Household Bureau/Handout via REUTERS

Thailand's King Maha Vajiralongkorn and Queen Suthida take part in a royal barge river procession along the Chao Praya river as part of the year-long celebrations of his coronation in Bangkok, Thailand, December 12, 2019. The king was accompanied by Queen Suthida Bajrasudhabimalalakshana and his 14-year-old son, Prince Dipangkorn Rasmijoti, on one barge, while his two daughters were on another. REUTERS/Soe Zeya Tun

Thailand's Princess Bajrakitiyabha and Princess Sirivannavari Nariratana take part in a royal barge river procession along the Chao Praya river as part of the year-long celebrations of his coronation in Bangkok, Thailand, December 12, 2019. Thailand Royal Household Bureau/Handout via REUTERS

Barges are seen during the royal barge river procession along the Chao Praya river, that is a part of the year-long celebrations of Thailand's King Maha Vajiralongkorn's coronation, in Bangkok, Thailand, December 12, 2019. REUTERS/Soe Zeya Tun