You can get many unique pleasures in the vast theme park, such as: traditional architecture and folk items from all over the world at the World Square; traditional Korea at the Samcheonri Hill; and western frontier at the Model Land. Some 40 roller coasters and rides including King Viking, Space Cruise, Black Hole 2000, Magic Carpet, Galaxy Train, Top Spin and Sky X are sure to satisfy you. It also has a botanical garden, IT WORLD, a zoo and an art gallery and holds various seasonal festivals: the Tulip Festival from April to May; the Starlight Rose Festival from July to August; the Chrysanthemum Festival from September to October; and the Snow Light Festival from December to February.
 

Admission

Admission List

Ticket		Adult	Youth	Child	Etc
Admission	Day-time	\ 25,000	\ 22,000	\ 20,000	Free admission is allowed to infants under 36 months. Please bring a valid ID or valid documents for verification.
	Night-time	\ 22,000	\ 19,000	\ 17,000
One day pass	Day-time	\ 44,000	\ 31,000	\ 38,000	Admission + unlimited free use of all attractions (except experiential facilities/ coin facilities/ special exhibitions special performances)
	Night-time	\ 37,000	\ 34,000	\ 31,000

More details: http://eng.seoulland.co.kr/eng/index.asp