Few hours by train from Seoul totally worths

Getting a highspeed train ticket, you just need 3 hours from Seoul, 8AM to 11AM, and you're gonna be in Busan. Often heard about this city by cute accent in KDrama, I was kinda impressed by the beauty in real life. The 1st thing is capsule train to have a spectacular ocean view (near Haundae beach), the 2nd is the colorful village (Geumchon Village) which take 10 minutes taxi from the main station. Busan is perfect for people who wanna get a getaway from Seoul, from 2D1N or 4D3N.