As usual I found myself a little bit short of local currency in my current country a day before flying to my next country.
ATM fees add up fast (especially in Thailand!) so I withdrew enough KRW to last a couple of weeks in Thailand.
But I seem to remember that exchanging currencies is quite a pain in Thailand. I seem to recall being advised to ask in gold shops when in smaller places. Of course it will be possible in the airport but airports always offer the worst rates, and in any case I'm curious. I do know that Bangkok at least has a decent chain of exchanges called "Super Rich" that offers good rates. But I don't know if that extends to Korean money.
Koreans have become a decent sized force in tourism in Asia in recent years so that's a plus.
My flight isn't until the evening so I will be able to exchange some KRW for USD or possibly THB before I head to the airport. If anyone has experience comparing rates between these strategies that would also be great to know.