u/Prestigious-Wish-176

Hello, I'm 18 years old from Spain and I'm travelling alone to SK next week. I already know that clubs and alcohol are banned for 18 year olds, but that's not a problem. I also have the hotel confirm that I can check in with authorization of my parents. But I'm wondering, is there anything I can't do alone? I want to go to concerts (I have tickets for le sserafim in inspire arena) but I'm a bit worried they won't let me in. I also want to visit the DMZ, but with all the constant passport checks I fear they will not let me in, even with a tour. Any help/insight will be greatly appreciated! 감사합니다 ☺️