I have driven it countless times. It is about 60 miles. It takes about an hour. You must not have a Tom-Tom. Avenida Bonampak is where the new Malecon was built, by the bull ring.
Best route forRoute for, leaving at 42.4 mi - 1:08 hrs (with 0 min. traffic)
From: Cancún, Benito Juárez, QR, MX
To: Playa Del Carmen, Solidaridad, QR, MX
Link, make sure it doesn't have carriage return / form feed characters if you copy paste:
http://routes.tomtom.com/print/route/Canc%25C3%25BAn%252C%2520Benito%2520Ju%25C3%25A1rez%252C%2520QR%252C%2520MX%254021.16056%252C-86.8475%2540-1/Playa%2520Del%2520Carmen%252C%2520Solidaridad%252C%2520QR%252C%2520MX%254020.6275%252C-87.08111%2540-1/?leave=now&traffic=true¢er=20.891705460775%2C-87.0204225&zoom=8&map=basic&bbox=-9790717.730322%2C2333108.078429%2C-9583420.509612%2C2424832.512372
Well, I won’t be taking the ferry from Cozomel to Playa d Carmena again next February.