Get on Hwy 1 S/PR-1 S in Santurce from C. de la Luna and PR-25 Take Carr Puerto Rico 2 O/PR-2 W and Expreso Rafael Martínez Nadal/PR-20 to Av. David Urbina in Guaynabo. Exit from Expreso Rafael Martínez Nadal/PR-20 Continue on Av. David Urbina. Take Desvío Piedras Blancas to Cll Union in Frailes Hillsview Plaza Cll Union, Guaynabo, 00969