We booked the DMZ tour (demilitirized zone between South Korea and North Korea) at a hotel  in Hoehyeon (Mido Hotel). If you are in Seoul you should not miss this special experience since Seoul is near the border. We also got inside the 3rd inflitration tunnel and saw North Korea from the observatory deck.

Here are some tips for this tour:

• For DMZ tour, you need to book one day in advance. For JSA tour, you have to book at least 3 days in advance.
• Almost all hotels and guesthouses offer to book both DMZ and JSA, so you really don't have to book online.

• All tours meet at the LOTTE HOTEL SEOUL, where tours can also be booked.

• Don't forget to bring with you your passport, you won't be able to see anything if you don't bring it with you. Your passport will be checked at least once by the military before accessing to the joint area