New answers tagged south-korea
All major Korean cell-phone network providers (SKT,KT,LG) have their booth at the airport. They rent cell phones with daily charges. If you can read Korean, look here. You can also rent data sharing devices called egg (KT) or bridge (SKT). You can use them to get wifi wherever you can get cell service.
According to Timatic you are eligible to 'Transit Without Visa' (TWOV) as long as you connecting flight departs within 24 hours. TWOV (Transit Without Visa): Visa required, except for Holders of onward tickets transiting Seoul Incheon (ICN), for a max. transit time of 24 hours. You will need to remain "airside" and will not be allowed pass ...
MikkaRin has it right, these drills aren't anything to be concerned about. When they do happen, traffic is meant to come to a halt (some choose to ignore) and things generally go quiet except for the sirens. Seeing fighter jets was a daily norm for me (lived in Ulsan for a year) and they are always out and about, but nothing to be concerned of.
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