Chungju (not be confused with provincial capital Cheongju) is a handy transport hub for various points in the mountains of central Korea. It is a beautiful town that is abundant with tourist sources and Jungwon (the center of a field in Korea) culture. It is also the hometown of Ban Ki moon, the Secretary General of the U.N.
There is one direct Mugunghwa train per day from Seoul, which takes the better part of three hours to putter its way in. Other options are to take the Gyeongbu Line to Jochiwon and transfer there, or even taking the KTX to Daejeon and continuing from there.
Chungju's sparkling new bus station is located on the northern side of town in a big complex also housing a Lotte Mart hypermarket. There are hourly departures to Danyang (1:30, W6200).
In season, you can take a very scenic cruise across Chungju Lake to Danyang (2 hours, W18000), and you can go for a sightseeting spin on the lake throughout the year (unless the lake freezes over entirely in winter). The ferry terminal is served by bus 301 (30 minutes, W950), which leaves across the street from the bus terminal, but inquire at the tourist information office for schedules (and whether the boats are running) as there are only 9 buses a day.
The easiest way to get around Chungju is certainly by cab. They are frequent and inexpensive. Try to have small change as taxi drivers occasionally get annoyed by large bills. The base fare is \2200 during the day and \2640 after midnight and fortunately, due to the close proximity of most things, one rarely surpasses this fee. There is a bus system, however this can be confusing to those who are unfamiliar with the language.
Chungjuho has the largest multipurpose dam in South Korea which holds the largest body of fresh water, linking Chungju, Jecheon, and Danyang in Chungcheongbuk do. There are Mt. Wolaksan National Park, Mt. Geumsusan, Gudambong Peak, etc. around the lake, so you can enjoy the beauty of nature harmonizing with the blue water. They run a tourist ship from Chungju to Sin Danyang (53km).
In every october, the city government hold Chungju World Martial Arts Festival. In this festival, you can enjoy Taekgyeon, Taekwondo and various world martial arts. Taekgyeon could be called the parent martial art of Taekwondo which is recognized as Olympic sport since 2000 by IOC.
The helpful tourist information office has a counter inside the bus terminal. English spoken and has a wealth of information on the area.