Which is somewhat late in the working day in order to do A lot culturally, but you could potentially go into the town (I might advocate Hongdae, as it's closest sort the airport) and enjoy a pleasant supper then a walk round the much more energetic region of the town before about to bed rather early (you'll want to get up around five:30am to have the ability to get within the coach by 6am).
Hi, Jo! If both of that you are Philippine copyright holders, so that you can exit the airport, even for a brief layover, you'll need a tourist visa for Korea. I am not sure if there is a shorter course of action for these kinds of a short-time period visa, but which include your copyright the US would hopefully help the procedure alongside. Alternatively, you could remain in the airport only & is not going to need a visa, given that your bag(s) are checked on to Dallas from PH.
Visa or K-ETA: This is actually the doc required by Korea so that you can experience customs and/or depart the airport. In the event you frequented 솔루션분양 Korea before September 2021, Even though you failed to need a visa back then, you will require a K-ETA now.