DH and I just returned from Riviera Maya and LOVED it!!! We stayed at the Catalonia Royal Tulum and thought this all inclusive resort was amazing!!! We loved it so much, we're pretty close to re-booking for Spring Break. We booked through Apple Vacations and paid $1800 for both of us for one week and that included air.
We didn't leave the resort to go snorkeling like we had planned because we had so many people tell us they had gone on excursions and found the snorkeling at the resort to be much better!
If you have any questions, feel free to let me know.