Nightlife - One of the biggest draws of South Korea is its bustling nightlife. In terms of a dress code, it tends to vary depending on which area of Seoul you’re in. Bars and clubs in Hongdae and Itaewon, for instance, are much more relaxed than the ones in Gangnam. Shorts and open-toed shoes are not advised in all places and don’t be afraid to bring a coat in the winter, since coat check is much cheaper here than in other cities. the most strict, and Hongdae and Itaewon being more relaxed.
Temple Visits - While visiting Buddhist temples, it’s important to be respectful of the space by not wearing anything too revealing or dirty. Bright colors and excessive makeup and perfumes may be frowned upon. Make sure to wear shoes you can slip on and off easily, as shoes are not allowed in many temple buildings.
DMZ - Many visitors to South Korea use their time to try and get a glimpse of its northern neighbor by taking a day trip to the much-contested Demilitarized Zone, or the DMZ. Dress codes for these tours, especially ones run by the USO for American citizens, are very strict. In general, you shouldn’t wear ripped jeans, shorts, short skirts, open-toed shoes, sleeveless shirts, or crop tops. You should also stay away from anything very oversized, t-shirts with big logos, and athletic or military attire. In general, you should dress clean, plain, and conservatively, or else you’ll be left behind!