A rehearsal for the Royal Barge Procession passes the Grand Palace on the Chao Phraya river, as it practises for the celebrations on June 12 to honour the 60th anniversary of King Bhumibol Adulyadej's reign, Bangkok, June 2, 2006. REUTERS/Chaiwat Subprasom (THAILAND)

A rehearsal for the Royal Barge Procession proceeds along the Chao Phraya river, as it practises for the celebrations on June 12 to mark the 60th anniversary of King Bhumibol Adulyadej's ascent to the throne, Bangkok, June 2, 2006. REUTERS/Chaiwat Subprasom (THAILAND)

A Thai royal barge paddles in the Chao Phya River during a rehearsal for celebrations for the 60th anniversary of the king's accession to the throne in Bangkok, Thailand, Friday, June 2, 2006. Celebrations for King Bhumibol Adulyadej's 60th year on the throne, beginning June 9, will be attended by representatives of about a dozen royal families from around the globe. (AP Photo/Sakchai Lait)