Many years ago we came across a guy who sailed from Indonesia to South Africa on a 24 foot sailboat using a school atlas for navigation. When he landed he knew he was in Africa but had no idea which city. He simply found a loom on the horizon one night and sailed to it, finding Durban.
So it can and has been done.
I love this story!!! Coming back from the Bahamas we saw the glow of Miami almost 100 miles away - wild. For the grammar geeks in this thread, it's "lume" from the same Latin root as "luminous," not "loom" like weaving cloth. (I didn't know that till I had to look it up for a blog story I wrote).
When I first saw the thread title I thought you guys were asking the questions seriously.