We stayed in mui ne for 5 days and needed some time off from the beach view so we took a 10 minutes bus to phan thiet city were we found "cafe 15". Its not very touristic but thats the whole point. 3 levels of comfy couches with windy open space, we had the yogurt coffee which was great but dont go over the top and eat cause its probably not their strong side. the menu is in Vietnamese so they had it translated for us in a funny way. anyway if youre looking for something different after the luxurious touristic life of mui-ne this is a place to chill and relax with the locals.