1968 aerial view of Balboa Naval Hospital, also known as Naval Medical Center San Diego, and Bob Wilson Naval Hospital. It is located within the grounds of Balboa Park and has played a role in the history of San Diego for more than 80 years, beginning as a hospital tent set up during World War I. An 85-acre, 89-building complex opened in 1925. During World War II, the hospital temporarily expanded to include most of the buildings in present day Balboa Park. A new complex opened in 1988 in Florida Canyon.