Riviera Maya
I've visited the Riviera Maya many times. We've always based ourselves in Playa del Carmen and ventured out from there. Playa del Carmen is an easy drive from Cancun and a rental car is essential. Each time, we have rented a beachfront private villa within walking distance of town. Fifth Avenue is the main street in town and is pedestrian only. This is where you will find a great number of restaurants, bars, and shops. Many dive shops are scattered around town. This is the main embarkation point for the ferry to Cozumel.
The main reason divers come to this area is to dive in the cenotes. These are ancient limestone caves, now filled with water, and making up the largest underwater cave system in the world. You can dive the cenotes without special training because they are considered cavern dives where you never lose sight of the entrance. Any further exploration requires cave diving training. The dive shops in Playa del Carmen will all arrange guided cenote dives led by certified cave divers. Some will also arrange high-speed boats to Cozumel for a two tank dive on the world-famous walls. As you continue south of Playa del Carmen, you'll come to the town of Puerto Aventuras, Tulum, and Akumal. Cenotes are scattered throughout this entire area. Akumal has a wonderful, calm bay perfect for snorkeling and is usually occupied by a large number of sea turtles, including green, hawksbill, and loggerheads. There is also a beautiful white sand beach. Tulum has an ancient Mayan archeological site that’s quite extensive and certainly worth a visit. Coba, another Mayan site, is only a short drive from Tulum and is also an excellent side trip. Some of my favorite cenotes are Dos Ojos, Angelita, Dream Gate, and Gran Cenote.
Bottom line: The Riviera Maya is a family-friendly area with fantastic cenote diving, exquisite Mayan cultural sites, authentic Mexican food beautiful beaches, and a welcoming and warm local population.