I'm not sure if they are considered/owned together anymore, though, Deb.
I know when RP first opened, and if you were renting a house at HR, you could use the facilities at RP (the pool complex)....it was for exposure, and to get folks to "take the tour"
Now, though, I *think* that you have to have a home booked through a tour operator/developer in order to stay at one, play at the other. Or that the HR homeowner has to also have a real estate interest in RP, in order for their home renters to use the pool complex.
Maybe someone else will have clarification on this for us
Just don't want anyone to assume that if they're staying at HR, they can use the pol at RP
...but we loved HR too...EI and HR are a lot alike
HTH!