No idea whether it will be open to public.  If the access is the same way i went, unless they put a guard house there, it should be accessible by public.

No one there because officialy it is closed.  Currently only resident in BayRock can access, and it is close to others. 

Occupancy in Nautica around 70% to be exact...(saw at management office).  As per agent, almost none avaiable for rental at the moment, all fully rented.  So i think those empty should belongs to Korean's or others...using for vacation home, etc etc.

As for Bayrocks, i would say around 40-50%, as seen from the lights. I live in high floor of Nautica.