There are several now that feature this inovation. Check out the St.Regis Resort on Bora Bora.
yes they do
Marine Resort has 19 floors.
19
34 (24 bottom floors, 10 upper floors)
Marine Resort has 19 floors, and on the 19th floor, you can obtain boxes for Xatu Appraisal, and then you go onto a warp tile to exit.
dubi
It has 29 floors and then the bottom where you battle Giratina
19. ~PikiSkymin.
19
20 floors in all, counting the boss floor. 10 top, 10 bottom ( but really the bottom has 9.)
There are 15 basement floors until you reach a Kangaskhan rock, then 9 more floors until the bottom.
The duration of The Glass Bottom Boat is 1.83 hours.
It is a place where you can find a lot of gummis.it is also a place for weak pokemon. it is 19 floors ;-)