A tourist reacts as an elephant sprays her with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. Songkran, the most celebrated festival of the year, marks the start of Thailand's traditional New Year. (Photo by Chaiwat Subprasom/Reuters)

Elephants spray water at children in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. (Photo by Chaiwat Subprasom/Reuters)

Elephants spray water at tourists in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. (Photo by Chaiwat Subprasom/Reuters)

Elephants spray tourists with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, about 80 km (50 miles) north of Bangkok, April 9, 2014. (Photo by Chaiwat Subprasom/Reuters)

A girl splashes elephants with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. (Photo by Chaiwat Subprasom/Reuters)

A foreign tourist is splashed with water by an elephant during a water battle in the street as people celebrate ahead of the Songkran Festival in Ayutthaya province, Thailand, April 9, 2014. Songkran, the Thai New Year which starts on April 13 this year, is celebrated in various ways, including splashing water at each other. (Photo by Pornchai Kittiwongsakul/AFP Photo)

Children splash elephants with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, April 9, 2014. Songkran, the most celebrated festival of the year, marks the start of Thailand's traditional New Year. (Photo by Chaiwat Subprasom/Reuters)