"Said to be a hundred years history, every year in May all people on the island must kept vegetarian diet for three days, at the last day the procession held. When midnight came hundreds young men hurried up to the three bun towers, torn off all the buns, put them in bag or spread them over the crowd. This activity of bun-snatching was ceased after an accident in 1978, the bamboo structure of the bun tower bent in the middle and half fall. The modern style bun-snatching came back at 2005, it changed to mountaineering equipped climbers and steel structure tower. The festival itself is an combination of praying to gods, ganged together, and to navigate the lost spirits."
Source: http://www.cheungchau.org/index.html

"長洲太平清醮是香港獨有的民間慶典，鄉土味濃，人情味也濃。對生活簡樸的長洲島民來說，這是一年一度的大事，全民全情參與，鑼鼓喧天，旗海飄揚，充滿地道色彩。
兩大特色慶祝活動：飄色會景巡遊及「搶包山」活動，令這個節目的吸引力由小島擴展至全港，訪港旅客和市民都慕名參與，熱情體驗；而「搶包山」亦已躍升至體育運動的層面，2009年就吸引了廣州、深圳和澳門等攀山團體的好手參加，成為華南地區關注的節慶活動。"
Source: http://www.discoverhongkong.com/festivehk2010/tc/traditional/cheung_chau_bun/highlight_highlights.jsp