The data is from my contacts at the guesthouses. The exact location was explored, partly through the pictures I received from the operators. This is the case, for example, with 13137029632, where you can see the house on the aerial photo.
Okay, “survey” isn't quite right, but I do it out of habit because I always map using my own pictures. I'll do that after my trip too, then I'll have the relevant pictures.
