Thanks, I found a metro station nearby too.
Something about the prices? Reservations are a must?
If I just arrive and ask for a boshintang, would it go well?

It's like 10-12 bucks a bowl. You could find cheaper in Jongno but this place specializes in dog. They keep good quality bred for consumption animals around and don't use the neighborhood catch. I recommend the su yuk platter because they give you the tang (soup) and you get to try steamed dog meat at its best. Are you going alone?

Thank you. Definitely alone. And low cost :-) Just a dog-meat guarantee would be OK. No perks or full belly necessary;-)

To me, taste of dog meat is very gamy and fatty venison or goat meat.

That's why they have the spicy ginger sauce. It's not something I go out of my way for but just wanted to help out folks here.

the folks here appreciate this and thank you:-)
well, to summarize this a bit, we´ve had a few tips here:
1) Just outside Gwangjang Market
2) Hwanggu restaurant on the outskirts
3) some "cheaper places" in Jongno (any exact known?)
4) asking for "kay-go-gi" or "bosintang"("s" or "sh" spoken/written there?), probably in the info booth on the Sejong-daero avenue, where they had a good english last time.

Which one would you, local (or half-local) guys suggest to a lonely traveller, wanting to just taste a dog with the priorities:
1) sureness of a dog meat
2) good price/power ratio
3) easy access by the public transport from icn/gmp/city center (t-money already in possesion)?
Thank you for your cooperation and feedback!

To be honest, a common problem you might have is that some places only do an order for two. That could be wayyyyyyy too much if you just want a taste.

For example, I found this place on a Korean blog. While I've yet to try, it actually looks quite good. Or at least they're good food bloggers. It's near Seoul University Station on Line 2, which may not be the most ideal.

http://leeve.tistory.com/m/post/1015

And it's spoken SHIN sound in bosintang. When you Romanize Korean, the letter ㅅ is technically S, but with certain vowels it makes SH sound.

nice post...but...do I see the prices well, that it´s more expensive than the first mentioned place? And...I don´t have any experience with "sit-on-the-floor" restaurants (and not much with restaurants at all), could it be a problem? Sorry if I´m too specific but I´d like to solve as much as possible in advance ;-)

Namdaemun market has a dog restaurant named Tong il-ok (통일옥). A boshintang restaurant for 60 years. Close to Seoul station and city hall. It was 11,000 won per bowl and 13,000 for the special, bigger bowl of boshintang.

http://m.blog.naver.com/hyeok0315/30188539122

Here's some pics of what you're getting yourself into.

Sitting on the floor is, for big, tall foreigners, unavoidably awkward. I will do it and don't mind it, but I know what's coming. My big legs can't sit crossed properly. Nice tiny Koreans fold up so well haha. My knees slightly angle up at the table when I cross them (as we would incorrectly say "Indian style"), so I have to really reach.

What I do instead is one leg normal (half "indian") and the other leg I fold it on its side. They will fall asleep this way, so I switch them throughout the meal. We all have a good laugh, eat, drink and enjoy.

Because it's boshintang, I imagine that it's never going to be the same price as a 6,000W bowl of kimchi jjigae. Also, 2,000W is barely $1.80. It's not that much.

nice, thank you both, my bosintang guides :-)
If I undersand well, the "restaurant" kind of places serves only two portions and more (it means hwanggu and 서울 보신탕맛집 30년전통 옛날사철탕삼계탕♬ as well) and I can only use the "market" places, which seem to be "Tong il-ok (통일옥)" or "something outside of the Gwangjang Market", am I true?

I'm sure Tongil ok would serve you a single bowl.

well, hope I´ll find it there with printed korean words or pictures, thanks once more for helpful answers.