My mom and I decided to take a trip down south back in May during Buddha's Birthday, a national holiday here in Korea. We hopped the incredibly comfortable and efficient KTX bullet train
at Seoul Station and were in Busan in about three hours. We were glad we had booked our tickets a month in advance, which is necessary to do when traveling during a holiday weekend, because there were a lot of people that were forced to stand in the aisles for the entirety of the trip.
Busan is South Korea's second largest city and despite it being only 450 km from Seoul, it couldn't be more different than the nation's capital.