Hey, I'll recommend you best destinations ever in Playa del Carmen.

Now, Mexico has removed all COVID-19 entry requirements. Tests, vaccination details, and health forms are no longer required in Mexico since this year. However, you need to follow certain guidelines, like wearing masks, when you participate in private tour and attraction or stay in hotels. And also, depending on your nationality, you might have a test when you go back to your country.
But recently, the confirmed cases of COVID-19 are increasing again. Therefore, if you plan to visit this place, you should check more detailed information at World Heath Organization.