Korea Arrival Guide: Immigration, Customs, and What to Expect
TL;DR: Check whether you need an arrival card before your trip: some travelers, including valid K-ETA holders, are exempt, and
Visa & Immigration
Do You Need a Visa for South Korea? K-ETA Explained
TL;DR: Visa and K-ETA requirements depend on your passport and travel purpose. Some visa-waiver travelers are temporarily exempt from K-ETA