Working on my third Brother Thomas mystery, I learned how to use the vector graphics program inkscape and have made a map of the resort camp where the novel takes place! I’m not sure it’s finished, but it’s close:

I think I’m going to add a legend to it. Some of the detail work is hard to see, so I might have to include a zoomed in section to spare people having to use a magnifying glass. Still, I think it’s come out pretty well.
(I might also add some trees to indicate where there is forest, but that’s most places, so it might make it too crowded.)