For years, if you lived here, three names carried the plaza. Los Pelícanos for seafood, John Gray's for the special occasion, La Sirena for the rooftop drink. That shorthand is over. The turnover between last high season and this one wasn't the usual quiet churn of a small town. It was a concentration event, and it happened inside a two-block radius of Parque Fundadores.
The thesis is worth stating plainly, because the generic "new restaurants" post you have seen on other sites misses it. Puerto Morelos didn't get a scattering of new places. It got a cluster of pedigreed openings, sibling restaurants from operators who already run something a block away, and one Michelin nod that pins the whole map. If you walk the square tonight, you can eat at four spots that share a chef or a family with four others.
Here is the block-by-block version, written for the neighbor who wants to know where to go on Friday, not the tourist who wants to know whether to visit.
Above and Below the Square
The most consequential opening is