This photograph is of the USS Duane and it’s crew in Naples, Italy. According to the official USCG history, the ship was docked in Naples approximately six different times between May 1944 and August 1944. The longest stay being from July 30th until August 9th. It is likely that the photograph was taken during this ten day stretch. Although it is not marked, Dale Rooks was the likely photographer for this image as he took several others in the Warbook in the weeks after this was likely taken.
On the left hand side of this image, you can see a Dome which is the San Francesco di Paola Church. The building in the middle right of the photo (on top of the hill) is the Certosa di San Martino, which is now a museum.
A more recent image taken from near the same vantage point can be seen below. This image was taken by Gabry2681, and can also be found on Google Earth. I have cropped the original to try and match up the angles as closely as possible