I believe there are only 2 golf courses on the island, none of which are anywhere near the cliffs...they are located within close distance to the low rise hotels/apartments. Maybe another course was built out near the California Lighthouse, but I have not heard anything about it.
On the opposite end of the island from Baby Beach, there is a famous Pro Golf Course. There is a very, very expensive rental villa advertising itself as having a view over the 16th fairway.
I do not want to put a link here because that could fall in the catagory of implicating people who are not involved (ie the owner of the villa).
But could it be that RG started to tell her boyfriend that she was visiting or staying there? And why would she be at a rental villa when they had a room at the Marriott Hotel?