Here’s a guide for foreigners (like me) living in Bangkok, and who want to apply for a Korean visa for one reason or another. Don’t worry, it’s pretty easy. You won’t get stuck in Bangkok traffic with this.
1) Take the MRT (subway) to Huai Khwang station.
2) Take Exit 2.
3) At this point, you can choose to walk or to take public transportation.
For public transportation, you can take either a taxi (40baht or thereabouts) or a motorbike (40baht). Me, I took the taxi since I doubt I’ll remain alive en route to the embassy (or anywhere else in Bangkok, for that matter) if I take the motorbike. These motorbikes drive so fast, only Thais well-trained in balancing themselves in the midst of the mad rush on the road can enjoy (endure?) this, IMHO.
To ensure that the taxi driver understands my destination well, I had a Thai friend write “Korea Embassy” in Thai script. This, I showed to the driver. Maybe it’s a good idea for you to do this, too.
Anyway, the taxi or motorbike should just go straight ahead and then turn left. After which, the Korea Embassy will appear on the left side of the road. You won’t miss it since it kinda looks like a hanok.
On a good day (meaning, no crazy Bangkok traffic), the taxi/ motorbike ride will take less than 5 minutes.
For walking, it’s something that should be done only if a) walking is your form of exercise, b) you don’t mind sweating in Bangkok heat, c) you don’t have enough money for taxi or motorbike.
The walk will take roughly 20-25 minutes. Again, just go straight ahead and turn left when you see the big road to your left. Continue walking until you see a hanok-like structure, which is the Korea Embassy.
That’s it. Hope this helps!