Taekwondo is a Korean martial art and it is the national sport in South Korea. "Tae" means to strike or break with foot, "Kwon"means to strike or break with fist, and do means the way or method, so this sport can be also known the way of kicking and punching. Taekwondo is deprived from an ancient martial art called Tokkeyon. During the period of Goguryeo, Silla and Baekje, the men used Tokkeyon for praticing their combat skills. Until 1952, Syngman Rhee the president of South Korea decided the Korean army should learn martial arts, and he changed the name from Tokkeyon to Taekwondo. Taekwondo is one of the two asian martial arts that are included in the olympic games, and it is practiced by milions of people all over the world.

Ssireum or sirum, is the traditional national sport of Korea. Back to the early stage of Korea, people used wrestling as a self defense method and soon many techniques were developed. It is the oldest traditional sport and it is also used for military purposes.Ssireum is similar to Japanese sumo wrestling, where two people fight in a sandy ring trying to throw each other to the ground.

Jultagi or eoreum is traditional Korean Performance of tightrope-walking. This acrobatic performance is performed in holidays like Daeboreum, Dano and Chuseok. This requires many skills because the performist has to jump and walk on the rope while entertaing the audiences by telling jokes or telling stories. The performist can walk on a tight rope, leaping with one foot on it, sitting and lying on it, and sometimes even pretending to fall down. Althought it may sound dangerous and difficult, many people find it interesting and enjoying.

Hwa-t'u, or Hanafuda, are playing cards of Japanese origin, which can be used to play a number of games. Card games were not used for gamblin in Japan during the early years until Francisco Xavier came. He and his crew brought playing cards and gambling card games which became popular before the isolation of Japan appeared. Hwatu is very common in Hawaii and South Korea under different names. People in Hawaii call it Sakura, Higobana or Hanafura. In South Korea, the cards are called Hwatu. One of the games called "Go-Stop"is played  during family gatherings and it has become a culture to Koreans for many years.

Hapkido is another type of martial art but less popular and famous than Taekwando. It is also a sport that requires both long and close range fight because it is allowed to use not only fist or foot, but also traditional weapons such as:short stick, cane, rope, nunchucks, sword and staff. "Hap" means harmony, coordinated, or joining, "ki" is internal energy, spirit, strength, or power, and "do" is way, so the whole thing can be translated as the way of coordinating energy.

Changgi, or Janggi is a very famous strategic board game in Korea. It is very similar to Chinese Xiangqi because the starting position and the names of the pieces and the board are similar. Some Korean believed that janggi is derived from Xiangqi, while other Koreans argued and said it was made long time ago in the Buyeo Kingdom. Changgi is usually played in parks in seoul. Many people will crowd around a Changgi board and watch two men playing it for money.

Chajeon Nori, or Juggernaut Battle is a traditional Korean game played by men. There are one commander on each team where they will each stand on dongchae, large log frames made by two 10 meter long logs tied together. Many people are involved in the game as some carry the dongchae while others fight with the other team for advance. If a team's dongchae falls to the ground, the opposing team wins and they will toss their straw sandals upward as a tradition.

Source:

http://en.wikipedia.org/wiki/Hapkido,http://www.martial-arts.ca/images/Photos/Baubil_International_Hapkido_Institute.jpg, http://www.msoworld.com/mindzine/news/images/changgi.jpg,

http://media.photobucket.com/image/Hwa-t%2527u/koreafans12/hwatkorea-fanscom12.jpg, http://www.lifeinkorea.com/activities/traditional.cfm, http://en.wikipedia.org/wiki/Taekwando,

http://en.wikipedia.org/wiki/Ssireum,

http://en.wikipedia.org/wiki/Changgi,

http://en.wikipedia.org/wiki/Jultagi,

http://en.wikipedia.org/wiki/Hwatu,

http://en.wikipedia.org/wiki/Chajeon_Nori