South Korean culture is still deeply rooted in ancient Confucian principles, including a strong dedication to family and society. Because of Koreans' respect for the hierarchy system, family elders and ancestors are honored above all. To uphold Korean etiquette, bow to elders in greeting (younger people are expected to bow lower than the elders out of respect) and allow them priority seating on public transportation. A bow when meeting anyone else is customary. And don't get offended if someone asks your age. Since elders are held with such high regard in Korean culture, oftentimes people ask as a way to avoid disrespecting anyone in their company. This is the same among youth culture, as younger people perceive themselves to have different roles in the group dynamic than the older participants, even if the age difference is only a couple of years. But don't worry too much about whether or not you're performing the social norms properly. Koreans have become well attuned to Western culture and don't expect foreigners to know the ins and outs of Korean etiquette (there are many different types of bows). It is also worth noting that in writing, Korean given names come after family names (the opposite is true in the United States).

South Korea's official currency is the South Korean won (KRW). One United States dollar equals roughly 1,118 won, but don't let all those decimal places scare you – won only comes in increments of 10 (10 KRW equals about 1 cent), so figuring out costs isn't terribly difficult. You can exchange money at most banks, and withdraw bills in increments of 10,000 won from ATMs. ATMs, however, have been a faulty means of getting cash for international travelers. Generally, ATMs in Seoul cater to those with Korean cards and even though your card may be listed as accepted, it still may not work. If this happens, the Korea tourism board recommends seeking out ATMs in heavily populated areas, such as train stations, bus terminals or department stores. To be safe, order Korean currency before you go to Korea or obtain your money at the airport. 

Combat and instability are in South Korea's past, but it's important to remember that this peaceful, modern democracy's armistice with its northern neighbor has been called into question a number of times since the Korean War ended in 1953. There have been a few isolated skirmishes between the two Koreas over the past 60 years, but the Demilitarized Zone (DMZ) between North and South actually stands as a safe tourist attraction.

While South Korea's crime rates are low, you should still exercise caution when it comes to personal safety. Seoul plays host to the same crimes symptomatic of any densely populated metropolitan area: Pickpocketing and purse snatching are more common in crowded areas. Don't walk alone at night and if you're a woman, exercise caution when visiting nightlife districts, as sexual assaults against women have been reported to the State Department. Make sure you only use legitimate taxis like the ones described in our guide to Getting Around Seoul too. The State Department also recommends travelers not join in protests of any kind (demonstrations are common in Seoul). If you find yourself in an emergency, dial 119 for an ambulance and 112 for the police. There are no required vaccinations for visiting Korea. Tap water is considered safe to drink but most travelers don't as the difference in water may cause stomach problems for far-flung travelers.