Ubon Ratchathani Candle Festival is the traditional well-known festival in I-San and the largest religious ceremony in Ubon Ratchathani, which is held on Asalha Bucha Day and Khao Phansa Day every year.
This day marks as the beginning of the rainy season retreat for the Buddhist monks. During the celebration, huge candles are prepared by people from temples throughout the province a couple of days before the procession, and then paraded through the city on floats with a beautiful lady representing an angel for each candle, each representing a local temple, district or other institution.
The procession moves from in front of Wat Si Ubon Rattanaram along the road to Thung Si Mueang. There are also dancers and musicians in traditional dresses joining the parade. In addition, there are impressive exhibition of wax sculptures, which are created by the international artists from various countries.