I believe this photo is from the early 1950s. My guess is based on the type of negative. The image shows a couple boarding a boat. In the background, I view a larger ship, which leads me to believe they are on a large body of water. Perhaps, one of the Great Lakes, a bay, or the ocean. Of course, I have no way to fact check this guess.
The only clue is the life preserver, which reads Harbor Sightseer. But even that bit of information did not provide further details of the location.
There is a gentleman at the bottom of the ramp. He is dressed all in white with a coordinating hat. I am assuming he is taking tickets for the tour.
What do you see?