For a different kind of sightseeing tour in korea take this full day privately guided excursion from seoul to the demilitarized zone dmz a border that divides north and south korea your guide takes you along the invasion route that north korean spy commandos used when they infiltrated the worlds most heavily fortified border in 1968 youll also have time to reflect on the future of the divided territory during a stop at imjingak peace park near the imjin river and the war memorial of kor