We were in Q Roo earlier this month. The beach where we were staying in PDC smelled bad, had sargassum in abundance, and the water was a dark and ugly brown. Cancun was better. Tulum had some decent beach areas, although it wasn't as epic as a couple of years ago. West facing Isla Mujeres had a some gorgeous beach. West facing Cozumel was OK. If you're on the Riviera Maya for the sparking and cool white beach sand, and the astonishing blue water, you may need to travel around the coast to find a decent spot. We had a rental car, so that was possible for us. I don't think Mexico will solve this problem with a few wheelbarrows and rakes.