It's worth making the effort to catch Loy Kratong, the November river festival in which Thai people ignite fireworks, release airborne lanterns, and float thousands of offerings to the river spirits on the country’s waterways. Thai New Year (Songkran) in April is a raucous celebration that sees Thais and visitors drench each other with water as the temperatures soar. To better understand the Isaan belief in ghosts and spirits, seek out Phi Ta Khon, a colorful merit-making festival that is held in the village of Dan Sai in Loei Province. It takes place over three days around the first weekend after the sixth full moon of the year. Also look out for the Surin Elephant Round Up, held in late November each year, during which participants prepare enormous buffet spreads for the local pachyderms.