Here is what I thought. 1) You can't use your own mobile phone here, we also use WCDMA(upgraded GSM) though. Instead, you can rent it at the airport. 2) Bring sunblock, sunglasses, moisturizer and an umbrella because it's very hot and dry in summer in Korea.(sometimes it goes up to 30 degrees) 3) If you want to use public transportaion, you should buy a transportation card called "교통카드" which is sold in convenience stores. (http://www.visitkorea.or.kr/enu/TR/TR_EN_5_4.jsp) (I highly recommend using the subway because it is well-organized, you can visit anywhere you want by subway) 4) In case of emergency, memorize the address or telephone numbers of your embassy in Korea.^^ (http://www.seoul.diplo.de/Vertretung/seoul/de/01/__09__hb.html -Tel : 0082-2-748-4114) 5) Most Koreans don't use English, so try to learn some basic expressions before trip. 6) Try our street food like "떡볶기","김밥","라면","닭꼬치", etc. (http://www.followmefoodie.com/2010/04/korean-street-food-in-korea-2/) 7) Try Korean's favorites like Yong said above, "삼겹살","불고기","닭갈비","비빔밥","소주","막걸리", etc. (I recommend "막걸리-Makgeolli") (http://www.misskoreabbq.com/best_korean_bbq_restaurant_nyc/makgeolli-rice-wine-jeon-korean-pancake-koreatown-new-york/) (한국음식 - http://www.trifood.com/food.asp) (삼겹살 - http://topchefkorea.com/2011/03/30/samgyupsar/) 8) You should keep in mind that most Korean foods are very spicy. (You can ask a waiter or waitress not to make foods spicy - "맵지 않게 해주세요 - maep ji anh ge hae ju se yo") 9) Don't take a taxi alone, you know what I mean.^^ 10) Try visiting historic sites in Seoul. (http://www.tripadvisor.com/Attractions-g294197-Activities-c5-Seoul.html) Enjoy your trip in Korea.^^ ^________^

Hi, Jepa!! how long will you stay in Korea? I think the most important thing is imformation about beutiful sites! I recommend Jeju Island!! There is a very beutiful site! If it comes to that, Bulgogi is very delicious, Soju is very nice haha!!

Yeah, I almost agree on their helpful tips. But I'd like to tell you that it is hot and very HUMID in summer in Korea. I'm 100% sure about that. And public security in Korean is very reliable. You can see people hanging out outside even at midnight, especially in summer.

Seoul have so many historical places. I give you a tip to learn of Korean history. :)

well, you had better know how to use chopstick.