Having been here a few years i know a thing or two about where to find ladyboys. There seems to be more and more around these days also..
So, first of. Legian street in Kuta, there you will find them outside and inside places like VI AI PI, Sky Garden, Paddy's, Bounty. Normally this is where the hottest and young tgirls are. The like to party and some looking for boyfriends.
The area around Double six is also good, especially in the late hours. Then there is the street called Dyana Pura where there is a strip of gay bars, and there is drag shows along with a lot of tgirls waiting to hook up on the street, every night, starting around 11 pm.
You can also run into tgirls of the top model caliber out in Petitenget at either Living Room or Hu'u bar on fridays and saturday, but not a safe bet.
They tend to live together in compounds and many in this street called Jalan Nakula so there is a lot of buzz around that area, even daytime.
Thats it!