EDSA north bound or EDSA south bound ka mangagaling?

If from EDSA southbound:
Option 1: take Ayala - turn left on Makati Ave - right on Dela Rosa - Legazpi St. then you'll see an entrance to Greenbelt 5 basement parking on the left side.
Option 2: Edsa - Ayala - Makati Ave - then enter at Greenbelt 3. After getting the ticket you can turn right then turn right again and follow the basement parking route to Greenbelt 5.

If you're on EDSA northbound:
EDSA - Arnaiz/Pasay Road - Greenbelt Drive then go under and turn right into the basement parking.