Below is a link to my picture of the Umgeni Steam Railway loco named "Maureen" (number 1486) going in reverse. It's the only way to return to the starting point as there are no turntables on the line. After dropping the passengers, they couple the loco on the other end and return to the depot. You can look up
http://www.umgenisteamrailway.com. Since the starting point is not at the depot, the first and last trips do not carry passengers. They do the downhill leg in reverse, I'm not sure if it is a coincidence or calculated.
The Watercress line in England also doesn't have turntables so each alternate trip the loco is in reverse.
Here is the link to the picture
https://i73.servimg.com/u/f73/17/29/29/41/104_0710.jpg