There was only one place in San Pedro that processed film. His price for slide processing was outrageous. He may be better with prints.
I would suggest sending them via water taxi to Belize City. Should get a one-day turn-around and better price.
HERE'S A BUSINESS IDEA FOR SOMEONE.
This, along with many environmental issues is why I'm going to digital.
Harriette

Harriette
Take only pictures leave only bubbles