Reservations are meant to be made online but there is also a booth on hand for those who don't have smartphones
Painted with flowers, the elephants slurped up water and sprayed adults and children in the scorching day heat.
Thai authorities have this year asked organisers of the festival, which marks the start of Thailand's traditional New Year, to reduce the amount of water used as a drought perseveres.
The elephants have been trained to suck up less water and aim more carefully.