Sirenis beach on the Riviera Maya is only twenty miles away from Playa del Carmen, or about an hour from the international airport in Cancun. Sirenis beach is composed of 5 virgin beaches, for a total length of over 3000 feet, making it one of the finest in the Riviera Maya. Nearby there are Mayan Ruins, huge "cenotes" (natural pools at the entrance to caves and underground waterways.) The beach is home to the largest coral reef in the Riviera Maya, which can be reached by swimmers and is a real treasure for anyone who loves diving. A lagoon named Yalku connects to the sea and is home to a variety of wildlife, including sea turtles and many tropical fish.