Kangwon Land Resort & Casino is the only casino in South Korea that allows its citizens to gamble legally so its always extremely crowded. If you're a tourist making the four hour trip from Seoul to visit this casino be prepared:
https://www.koreatimes.co.kr/www/news/biz/2012/08/335_118232.html

Want to get to this casino in a "bullet" taxi? (for degenerate gamblers only)
Part 1: http://koreajoongangdaily.joinsmsn.com/news/article/article.aspx?aid=2953508&cloc=joongangdaily

Part 2: http://koreajoongangdaily.joinsmsn.com/news/article/article.aspx?aid=2953560&cloc=joongangdaily