SN Don Ludwikowski
Qui Nhon, Vietnam
Looks like the coastline further north, near Qui Nhon - more rugged by the shoreline. The two vessels are a local junk and a PBR as pictured in 0023, probably VNN, with a gun mount forward and a radar dome over the wheelhouse. I count 5 heads - magnify this one and have a look. When you're a lookout, you should be able to ID these vessels at this distance. The radar looks like a flying saucer hovering over the PBR.