Every year, on the thin day of the first lunar month, the Giay in Sa Pa organize their special festival. The worship ceremony is held at ngo hours (12 o'clock at midnoon). The sorcerer wears blue dress, offer sacrifices to Heaven, Earth, God of rice, pray for Spirits in protecting crops, and having a good crop.

After the worshipping ceremony, villagers take part in traditional games such as bow-shooting, cross-bow shooting, horse racing, con throwing, tug of rope, stick pushing.