Maps that actually work: Naver & Kakao

For legal reasons Google Maps has no full driving/walking directions inside Korea, which surprises most first-time visitors. Download Naver Map (or KakaoMap) for accurate walking, transit and bus routing — both have English. For taxis, use the Kakao T app: it books a metered taxi without a language barrier and shows the route. Search Korean place names or paste the Korean address for best results. These apps are free.