People in Cambodia are well-known for their hospitality and warmth. The Dos and Don’ts are much less than any other countries of Southeast Asia. Ask for the advices from your tour guide, if you are not sure about anything.
For holidays and festivals, the most important ones in Cambodia are:
The Khmer New Year (April): It is commonly celebrated on 13th April each year although sometimes the holiday may fall on the 14th April in keeping with the Cambodian lunar calendar. This marks the end of the harvest season when farmers enjoy the fruits of their labor and relax before the start of the rainy season. The New Year holidays last for three days. During this time, people engage in traditional Khmer games; they paly such games as the Bas Angkunh 'seed throwing', Chaol Chhoung 'twisted-scarf throwing', Leak Kanséng 'twisted-scarf hide', tug of war, shuttlecock kicking, etc. Throughout the country, people merrily dance the traditional Khmer forms of the Ran Vong, Ram Kbach, Saravan, and Lam Leav in the open.
Royal Ploughing Ceremony(May)： It is solemnly celebrated at the beginning of the sowing and planting season. Every year in May, this cultural ceremony takes place at the park in front of the National Museum (next to the Royal Palace). Cambodia has deep connection with earth and farming. There is a deep astrological belief that royal oxen known in Khmer as Usapheak Reach, have an instrumental role in determining the fate of the agricultural harvest each year.
Traditionally, the King Meak, representing the king of Cambodia, ploughs the field whilst the Queen, the Preah Mehuo, sows seeds from behind. The field is ceremoniously ploughed three times around. The royal servants then drive the royal oxen to seven golden trays containing rice, corn, sesame seeds, beans, grass, water, and wine to feed. The royal soothsayers interpret what the oxen have eaten and predict a series of events including epidemics, floods, good harvests, and excessive rainfall. At this festival, both men and women wear brightly colored Khmer traditional costume.
Pchum Ben Day or All Soul Day (15 days from the end of September into October)
This festival is dedicated to blessing the spirits of the dead and is one of the most culturally significant in Cambodia. The exact date defers year to year as determined by the lunar calendar. Each household visits their temple of choice and offers food to the monks. Offering of food is a meritorious act and is one of the oldest and most common rituals of Buddhism. During the Pchum Ben festival, people bring food to the temple for the monks and to feed hungry ghosts who could be their late ancestors, relatives or friends. Pagodas are usually crowded with people taking their turn to make offerings and to beg the monks to pray for their late ancestors and loved ones. Many remain behind at the temple to listen to Buddhist sermons.
Water Festival(November)：It is probably the most exorbitant festival held each year in November. It is usually celebrated for three days, i.e. the 14th and 15th of the waxing moon and the 1st of the waning moon of the month of Kadek. The 15th of the waxing moon is the last full moon day.
The festival ushers in the fishing season, marks a change in the flow of the Tonlé Sap and the ebbing-water season, and is seen as thanksgiving to the Mekong River for providing the country with fertile land and abundant fish.
At the height of the rainy season, the water of the Mékong River forces the Tonlé Sap to reverse its current and to flow up to the Tonlé Sap Lake. As the water of the Mékong River begins to subside, the swollen Tonlé Sap Lake flows back to the Mékong River through the Tonlé Sap and empties into the sea, which leaves behind vast quantities of fish. This, indeed, is a remarkable phenomenon of the Tonlé Sap.