The coastal town of Hua Hin is a sea of yellow as thousands of Thais, wearing the king's colours, throng the streets for a glimpse of their monarch on the 64th anniversary of his coronation.<br /> <br />It's rare for King Bhumibol Adulyadej to make a public appearance. The 86-year-old has suffered from ill health for several years.<br /> <br />But the Buddhist ceremony to honor the world's longest reigning monarch was not one to be missed.<br /> <br />Monks led the service, which was attended by the royal family and government officials.<br /> <br />Beseiged Prime Minister Yingluck Shinawatra was also present. She has faced months of protests demanding her resignation and many have died in pro and anti government violence.<br /> <br />Thailand's constitutional monarchy has few formal powers, but the king is held in such high regard any comments on politics are highly influential.<br /> <br />This time he didn't speak.<br /> <br />The Thai monarch came to the throne in 1950 when he was 18.<br /> <br />He is revered as the father of
