1. The DMZ in Seoul stands for the Demilitarized Zone, which is a buffer zone between North and South Korea. It is one of the most heavily guarded borders in the world and has become a tourist destination in recent years. Visitors can take guided tours to see the border and learn more about the history of North and South Korea. The DMZ is also home to the Joint Security Area, where North and South Korean soldiers stand face to face.

2. The DMZ tour programs usually operate from early morning till afternoon. There are many tour companies that offer DMZ tours in Seoul, and phone numbers are available on their websites.

3. To visit the DMZ, you must join an organized tour, and it is advisable to book in advance. Prices for tours vary depending on the company and tour program, but ticket prices usually start from 50,000 KRW (approximately 44 USD). Transportation to and from the DMZ is included in the tour package.