Before You Go
1. Not Checking K-ETA Requirements — Korea's Electronic Travel Authorization (K-ETA) requirements change frequently. Some nationalities are currently exempt, but this can shift with little notice. If you arrive without K-ETA when it is required, you will be denied boarding or face delays at immigration. Check k-eta.go.kr at least two weeks before departure. The application costs ₩10,000 and takes 24–72 hours to process.
2. Skipping Travel Insurance — Korean hospitals are excellent but expensive for foreigners. Without Korea's National Health Insurance, a basic ER visit costs ₩300,000–₩1,000,000, and hospitals require upfront payment. A good travel insurance policy costs ₩30,000–₩50,000 per week and can save you millions of won in a medical emergency.
3. Not Learning to Read Hangul — The Korean alphabet (Hangul) was designed to be easy to learn. You can master it in 1–2 hours, and it transforms your trip. Many Korean words are borrowed from English — 'coffee' is 커피 (keo-pi), 'bus' is 버스 (beo-seu), 'chicken' is 치킨 (chi-kin). Being able to sound out words on menus and signs is a game-changer.
Do not arrive in Korea without checking K-ETA requirements. Rules change frequently, and not having K-ETA when required means denied boarding or immigration delays. Check k-eta.go.kr before booking flights.
Getting Around
4. Using Google Maps for Navigation — This is the number one mistake foreign visitors make. Google Maps does not work properly in South Korea — it cannot provide walking directions, driving navigation, or accurate public transit routes. Download Naver Map or KakaoMap before you arrive. Both have English interfaces and are far more accurate for Korean navigation.
5. Not Getting a T-money Card Immediately — Buy a T-money card at any convenience store the moment you land at Incheon Airport (₩2,500 for the card, then load credit). It works on all subways, buses, taxis, and even at convenience stores. Without it, you will waste time buying single-ride tickets at machines, and each ride costs ₩100 more.
6. Not Downloading a Subway App — Seoul's subway has 23 lines and 700+ stations. Without an app, you will get lost. Download Kakao Metro or Seoul Metro (both have English) for real-time route planning, transfer guidance, and accurate travel times. The apps tell you which car to ride in for the fastest transfer.
7. Taking Taxis Without Kakao T — While Korean taxis are generally honest, using Kakao T (Korea's Uber equivalent) eliminates the risk of meter disputes, gives you a fare estimate upfront, and provides a digital receipt. The app has an English interface. Regular taxis start at ₩4,800, and Kakao T charges no premium for standard calls.
At Incheon Airport, take the AREX Express Train to Seoul Station (43 minutes, ₩9,500) instead of a taxi (₩65,000–₩100,000). It is faster during rush hour and a fraction of the price.
Food & Dining Mistakes
8. Ordering Too Much Food — Korean portions are generous, and every meal comes with free banchan (side dishes) that you did not order. First-timers often order multiple dishes and cannot finish them. Start with one main dish per person and add more if needed. Banchan refills are free — just ask.
9. Not Knowing How to Order — Many Korean restaurants use tablet ordering systems, kiosks, or paper menus where you mark items with a pen. Calling '저기요' (jeogiyo — excuse me) gets the server's attention. At kiosks, look for a language toggle to English. Some smaller restaurants still require verbal ordering in Korean — translation apps or pointing at menu photos both work.
10. Avoiding Adventurous Food — Do not stick to familiar dishes. Korea's food is one of its greatest attractions. Try sundae (blood sausage, not ice cream), gopchang (grilled intestines), dakbal (spicy chicken feet), and anything a local recommends. Street markets like Gwangjang and Tongin are the best places to experiment for ₩3,000–₩8,000 per dish.
Cultural & Practical Mistakes
11. Visiting Palaces on Their Closed Day — Each of Seoul's royal palaces closes on a different day of the week. Gyeongbokgung closes on Tuesdays. Changdeokgung, Changgyeonggung, Deoksugung, and Gyeonghuigung all close on Mondays. Showing up on the wrong day is a surprisingly common mistake that wastes half a day.
| Palace | Closed Day | Admission |
|---|
| Gyeongbokgung | Tuesday | ₩3,000 (free in hanbok) |
| Changdeokgung | Monday | ₩3,000 (free in hanbok) |
| Changgyeonggung | Monday | ₩1,000 |
| Deoksugung | Monday | ₩1,000 |
| Gyeonghuigung | Monday | Free |
12. Not Reserving a DMZ Tour in Advance — You cannot visit the DMZ independently. All visits require a guided tour through an authorized operator, and JSA tours in particular sell out days or weeks ahead. Book at least one week in advance, especially during peak season (April–October). Bring your passport — it is checked multiple times.
13. Ignoring Monsoon Season — Korea's monsoon season (장마, jangma) hits from mid-June to late July with heavy rain and possible flooding. August brings extreme heat and humidity. If you visit in summer, pack rain gear, waterproof bags for electronics, and be prepared for indoor plans on heavy rain days.
Money & Tech Mistakes
14. Not Having Enough Cash — Korea is extremely cashless, but some market stalls, street food vendors, small restaurants, and traditional businesses only accept cash. Carry at least ₩50,000–₩100,000 at all times. ATMs at convenience stores (CU, GS25, 7-Eleven) accept international cards — look for the 'Global ATM' label.
15. Not Getting an eSIM or Pocket Wi-Fi — While Korea has excellent free Wi-Fi in cafes and subway stations, you need mobile data for navigation (Naver Map), Kakao T taxis, translation apps, and communication between Wi-Fi zones. eSIMs start at ₩10,000–₩20,000 for 5–10 days of data. Buy one before departure or at Incheon Airport arrivals.
- Download Naver Map and KakaoMap before you land.
- Buy T-money at the first convenience store you see.
- Check K-ETA requirements at k-eta.go.kr.
- Carry ₩50,000–₩100,000 in cash as backup.
- Get an eSIM or pocket Wi-Fi for mobile data.
- Learn to read Hangul — it takes one hour.
- Check palace closed days before planning your route.
- Book DMZ tours at least one week in advance.
Most of these mistakes are easily avoidable with 30 minutes of preparation. The three most impactful things you can do before arriving: check K-ETA, download Naver Map, and learn to read Hangul.
Before You Go
1. Not Checking K-ETA Requirements — Korea's Electronic Travel Authorization (K-ETA) requirements change frequently. Some nationalities are currently exempt, but this can shift with little notice. If you arrive without K-ETA when it is required, you will be denied boarding or face delays at immigration. Check k-eta.go.kr at least two weeks before departure. The application costs ₩10,000 and takes 24–72 hours to process.
2. Skipping Travel Insurance — Korean hospitals are excellent but expensive for foreigners. Without Korea's National Health Insurance, a basic ER visit costs ₩300,000–₩1,000,000, and hospitals require upfront payment. A good travel insurance policy costs ₩30,000–₩50,000 per week and can save you millions of won in a medical emergency.
3. Not Learning to Read Hangul — The Korean alphabet (Hangul) was designed to be easy to learn. You can master it in 1–2 hours, and it transforms your trip. Many Korean words are borrowed from English — 'coffee' is 커피 (keo-pi), 'bus' is 버스 (beo-seu), 'chicken' is 치킨 (chi-kin). Being able to sound out words on menus and signs is a game-changer.
Do not arrive in Korea without checking K-ETA requirements. Rules change frequently, and not having K-ETA when required means denied boarding or immigration delays. Check k-eta.go.kr before booking flights.
Getting Around
4. Using Google Maps for Navigation — This is the number one mistake foreign visitors make. Google Maps does not work properly in South Korea — it cannot provide walking directions, driving navigation, or accurate public transit routes. Download Naver Map or KakaoMap before you arrive. Both have English interfaces and are far more accurate for Korean navigation.
5. Not Getting a T-money Card Immediately — Buy a T-money card at any convenience store the moment you land at Incheon Airport (₩2,500 for the card, then load credit). It works on all subways, buses, taxis, and even at convenience stores. Without it, you will waste time buying single-ride tickets at machines, and each ride costs ₩100 more.
6. Not Downloading a Subway App — Seoul's subway has 23 lines and 700+ stations. Without an app, you will get lost. Download Kakao Metro or Seoul Metro (both have English) for real-time route planning, transfer guidance, and accurate travel times. The apps tell you which car to ride in for the fastest transfer.
7. Taking Taxis Without Kakao T — While Korean taxis are generally honest, using Kakao T (Korea's Uber equivalent) eliminates the risk of meter disputes, gives you a fare estimate upfront, and provides a digital receipt. The app has an English interface. Regular taxis start at ₩4,800, and Kakao T charges no premium for standard calls.
At Incheon Airport, take the AREX Express Train to Seoul Station (43 minutes, ₩9,500) instead of a taxi (₩65,000–₩100,000). It is faster during rush hour and a fraction of the price.
Food & Dining Mistakes
8. Ordering Too Much Food — Korean portions are generous, and every meal comes with free banchan (side dishes) that you did not order. First-timers often order multiple dishes and cannot finish them. Start with one main dish per person and add more if needed. Banchan refills are free — just ask.
9. Not Knowing How to Order — Many Korean restaurants use tablet ordering systems, kiosks, or paper menus where you mark items with a pen. Calling '저기요' (jeogiyo — excuse me) gets the server's attention. At kiosks, look for a language toggle to English. Some smaller restaurants still require verbal ordering in Korean — translation apps or pointing at menu photos both work.
10. Avoiding Adventurous Food — Do not stick to familiar dishes. Korea's food is one of its greatest attractions. Try sundae (blood sausage, not ice cream), gopchang (grilled intestines), dakbal (spicy chicken feet), and anything a local recommends. Street markets like Gwangjang and Tongin are the best places to experiment for ₩3,000–₩8,000 per dish.
Cultural & Practical Mistakes
11. Visiting Palaces on Their Closed Day — Each of Seoul's royal palaces closes on a different day of the week. Gyeongbokgung closes on Tuesdays. Changdeokgung, Changgyeonggung, Deoksugung, and Gyeonghuigung all close on Mondays. Showing up on the wrong day is a surprisingly common mistake that wastes half a day.
| Palace | Closed Day | Admission |
|---|
| Gyeongbokgung | Tuesday | ₩3,000 (free in hanbok) |
| Changdeokgung | Monday | ₩3,000 (free in hanbok) |
| Changgyeonggung | Monday | ₩1,000 |
| Deoksugung | Monday | ₩1,000 |
| Gyeonghuigung | Monday | Free |
12. Not Reserving a DMZ Tour in Advance — You cannot visit the DMZ independently. All visits require a guided tour through an authorized operator, and JSA tours in particular sell out days or weeks ahead. Book at least one week in advance, especially during peak season (April–October). Bring your passport — it is checked multiple times.
13. Ignoring Monsoon Season — Korea's monsoon season (장마, jangma) hits from mid-June to late July with heavy rain and possible flooding. August brings extreme heat and humidity. If you visit in summer, pack rain gear, waterproof bags for electronics, and be prepared for indoor plans on heavy rain days.
Money & Tech Mistakes
14. Not Having Enough Cash — Korea is extremely cashless, but some market stalls, street food vendors, small restaurants, and traditional businesses only accept cash. Carry at least ₩50,000–₩100,000 at all times. ATMs at convenience stores (CU, GS25, 7-Eleven) accept international cards — look for the 'Global ATM' label.
15. Not Getting an eSIM or Pocket Wi-Fi — While Korea has excellent free Wi-Fi in cafes and subway stations, you need mobile data for navigation (Naver Map), Kakao T taxis, translation apps, and communication between Wi-Fi zones. eSIMs start at ₩10,000–₩20,000 for 5–10 days of data. Buy one before departure or at Incheon Airport arrivals.
- Download Naver Map and KakaoMap before you land.
- Buy T-money at the first convenience store you see.
- Check K-ETA requirements at k-eta.go.kr.
- Carry ₩50,000–₩100,000 in cash as backup.
- Get an eSIM or pocket Wi-Fi for mobile data.
- Learn to read Hangul — it takes one hour.
- Check palace closed days before planning your route.
- Book DMZ tours at least one week in advance.
Most of these mistakes are easily avoidable with 30 minutes of preparation. The three most impactful things you can do before arriving: check K-ETA, download Naver Map, and learn to read Hangul.