There are several events / promotions conducted throughout the years.
Highlights include a Korea wide shopping extravaganza called the Korea Grand Sale, a 3+1/4+1 sale on select hotel rooms called the One More Night Promotion, and even a free shuttle service to such great destinations as Busan, Gyeongju, and Jeonju.
Free Shuttle Bus Service
Period of Traveling
January 1 ~ December 31, 2011 (12 Months)
Overseas visitors and foreign residents
Every day except Mondays
Read more details here.