Welcome to the Jungle!
We had lunch at the Flying Fish Grill in Half Moon Bay a few weeks ago. It's a small restaurant with decent, if overhyped food.
They have a single restroom that is in the building, but to quote my New England friends, "You can't get there, from here".
If you want to wash your hands or - ahem - do something else, you must walk out of the front door, turn left through the patio, turn left and walk the length of the building past the take-out window, turn left and go around the back of the building, turn left into the back door, look up at the sign above, walk past the company bulletin board and pantry, turn left into the kitchen, say 'Ola' to the cook staff, turn left into the back room where tacos are being made, turn left once more, open the door, and enter the restroom.
You have walked about 400 feet to reach a toilet that is 25 feet from where you were dining.
Strange, but at least they have fun with it.
There are at least three of these 'Restroom Safari' signs to help you find your way.
This is one case where it is truly about the journey, not the destination.