Visit Rio Lagartos and Las Coloradas at the Golf of Mexico where more than 40.000 Flamingos are living. Go on a boat trip at sunrise to see the Flamingos and all the other amazing birds nesting in the mangroves at Rio Lagartos, see crocodiles and the Salinas, where even the ancient Mayans harvested their salt. Visit the old colonial city of Valladolid to go swimming in the beautiful Cenote Zaci and have a Mexican lunch at a local restaurant.