I was there a year ago and it was really bad. Stinky in the vicinity, no swimming for me. In January we returned…there was less of it, removal efforts in high gear (successfully) and the conditions much much better.
Hoping for the best this time, but also prepared for different activities while visiting.

…check out the Mayan ruins in Tulum,

but it makes sense. Also noted that with warmer ocean waters more of it grows ... so that's not good.

We are about an hour north of surfside or galveston - up in the burbs. For us it's the start of hurricane season (and this year heavy mosquitos in this swampland from all the rain). The old-timers tell us where we live now used to be rice fields.

it happens April or may. So it's happened already? (Coastal texas) Haven't heard any complaints, anyway.