The Mid-Autumn Festival is one of the two most important holidays in the Chinese calendar, the other being the Chinese New Year, and is a legal holiday in several countries. Farmers celebrate the end of the summer harvesting season on this date. Traditionally, on this day, Chinese family members and friends will gather to admire the bright mid-autumn harvest moon, and eat moon cakes and pomeloes together. Accompanying the celebration, there are additional cultural or regional customs, such as:
Eating moon cakes outside under the moon
Putting pomelo rinds on one's head
Carrying brightly lit lanterns, lighting lanterns on towers, floating sky lanterns
Burning incense in reverence to deities including Chang'e (simplified Chinese: 嫦娥; traditional Chinese: 嫦娥; pinyin: cháng'é)
Planting Mid-Autumn trees
Collecting dandelion leaves and distributing them evenly among family members
Fire Dragon Dances
Shops selling mooncakes, before the festival, often display pictures of Chang'e floating to the moon.
from http://en.wikipedia.org/wiki/Moon_festival
