Trying to get something less touristy and slightly cheaper, we "dared" to cross the bridge into akumal town. Cosme is the first hole in the wall on your right after the bridge.
We sat down and the owner suggested we get a plate of mixed grilled meats and we obliged.
The plate came immediately with chicken, pork, etc, tortillas, salsas, frijoles, Mexican rice.
The kids said it was the best meal so far in our vacation.
Six of us ate and had pop for 550 pesos , tip included. A quarter of what we'd been paying at the popular places.