KKday User
When you leave the baggage claim area at the airport in Terminal 2 and head out to the lobby, there are plenty of signs so you won't get lost, but it's quicker to just go through the parking lot just outside the terminal. To enter, you need to tell the staff at the restaurant next door that you want to use the shower, receive a barcode for entry, and then enter. There are plenty of lockers, but they are only big enough to fit a large backpack in, so you can't fit a suitcase in, so leave them on the shelf. There is no boundary between bare feet and shoes, so if you bring flip-flops it's probably more hygienic.