- San Antonio de la Tuna
- 787-872-2100, 787-872-6400, 787-872-1034
- From Rt 2, south turnoff just west of Rt 113. About 2 Km. Isabela PR
- This major historical site (from 1725) is the original location of Isabela. The site is dominated by the ruins of the church. Call City Hall to arrange a visit or take the trolley tour. Very impressive.