I went there a few years ago.
There is a hotel called, I think, Hamilton at the red light district next to the US Army base in Seoul. This hotel has a soapland at its basement and provide same service as those provided in Japan. The cost is around HK$1,000 for 60 minutes - the receptionist speaks English and this was a bargained price).
You start off by having a shower (cleaned by the girl). Then you would be invited to sit on the "special" chair whereby the girl will clean your lower part. Then there is a hot bath waiting for you. Afterwards, you lay down on a massage bed (like those in HK) whereby the girl will give you a massage. The girl will moisturise your entire body with a white coloured lotion (they use colourless lotion in Japan and on an air bed instead) and give you a very enjoyable body massage. The "brush" from her body is very fun. This is actually the most enjoyable part in the whole process. This will be followed by a BJ with con then the real stuff.
I went there twice and the first girl was only soso. I complained the second time (actually I went there on 2 consecutive nights) and the girl given at the second time was a 7.5/10.
There are also plenty of Business Clubs around Seoul. I stayed at a hotel (can't remember name now) and there was about 10 Business Club nearby. I tried one and the price was HK$3600 for 1 hr 30 mins - yes very expensive and this included a bottle of Whiskey and a few bottles of beer. To avoid any dispute I actually asked for the price at the reception. I asked a few clubs and the prices quoted were pretty much the same. The receptionists speak little Eng but at least able to quote you a price and they didn't reject me as a Chinese.
I was taken into a karaoke room. The first girl came in and was actiually quite good. But given the hufty price I paid I wanted better quality so I asked for another one. The second one was also quite good so I accepted her, and the wild experience began.
We started talking in Eng with her very very limited Eng capability. We french kissed and of course felt each other. We shared the bottle of whistky and got quite "high" after about 40 minutes. In the 90 minutes session, there were about 3 sessions of naked table dance. The first dance session was normal stuff. The second session got wild. Remember I said earlier that there were a few bottles of beers, I actually wondered the reason of their existence as we were drinking whistky. I got the answer in the second session. Basically, the girl kneed down on the table naked and started spraying her body with the 2 bottles of beer! A rather experience.
The last dance session which took place just before the whole thing ended and lasted for, i think, 3 songs. She started off rubbing her sister on my brother and then gave me a BJ. I think it would include blowing into her mouth but on that occasion I was too drunk to blow. What a waste.
There are some girllie bars at the area next to the US army base. They I think are like those in Wanchai (I have not been to those in Wanchai). Nothing too special but you pay for drinks which are slightly more expensive then market and there were girls there to play pool with her. You can touch her a little bit and these girls speak Eng so that you could commiunite with them.
The last place of my report is a disco called Julianna at the Coex plaza. This is a decent disco. The reason why I included it in this report is because it is like a matching/dating place. The waiter will continuously introduce female patrons (they are NOT working girls) to your table. Due to language barrier, we experienced huge problem in communication and lots of the girls would politely leave. I met a girl who spoke a little Mandarin and is an air hostess at Air Korea
The problem is that the cost is very expensive. It costed the 2 of us HK$1800 entrance fee which again came with a bottle of whistky, a fruit platter and some soda water. The whisky goes very fast when you keep on pouring the girls drinks!