I'm an undergraduate in Korea (South). Quick answer for your question is "impossible" though you can find some people "acting" kisaeng (-_-?!)
There are 2 types of kisaeng in korea nowadays
Real kisaeng
They are who really worked(?) as kisaeng until 1940's but not anymore
since kisaeng has become illegal "job" (1945 I can't find the exact bill related at the moment). However Korean government chose some famous kisaeng still alive
and let them teach young people to learn kisaeng skills such as dancing, poems,
drawing and so on in order to preserve the culture of kisaeng
but for you it would be really hard to meet these people
since there are very few left
Who learned skills. They are the one you can find in Korea
if you visit here http://www.koreanfolk.co.kr/multi/english/
In today's Korea people don't have a job called kisaeng but some remain as nationally approved kisaeng; this is somewhat like American Indians as I know there are no Indians in US but you can find some in some preserved places (this may not be true but to help you understand).
ki = 技 (hanja/Chinese character) = skilled
saeng = 生(Chinese character) = person
kisaeng == kinyo (hard to tell you correct pronunciation)
ki = same as above
nyo = 女(Chinese character) = female
You might find it curious that Koreans use Chinese characters to write Korean but during the Chosun dynasty (1392-1897), when kisaengs lived, people used Chinese characters for written language although the Korean alphabet (Hangul) was invented in 1443 by King Sejong.