Passport? Good.

South Korea

Phone and internet

Getting online is trivial here. Proving who you are is the harder part.

Diagram: free public wifi runs on subway trains, city buses and in most cafés

Can I use my own phone in South Korea?

Yes, and you may barely need data — free public Wi-Fi runs on subway trains, buses and in most cafés.

Korea Tourism Organization

Sort the practical stuff before you fly.

eSIMs, rail passes, and airport transfers — the things worth booking before you land.