Do you dare to swim with these ocean giants? From around May to September, sharks appear close enough to the coast of Cancún, and several tour operators let you observe them and even swim and snorkel with them (all safety precautions, naturally, in place).

Downtown (El Centro) is the actual backbone of Cancún. What it lacks in history, it makes up for being a true melting pot — an exciting mix of the old traditional Mexico and an ultra-modern urban sprawl. Avenida Tulum, the main street, passing through the heart of the city, is easy to reach by public transport. The street is lined with shops, cafés, bars, and restaurants. Be sure to stop by Parque de las Palapas, on the market square, where locals come to chat and watch the entertainment provided by various local groups. The lively atmosphere and the sound of Mexican music are infectious, and any worries will quickly be postponed to "mañana." Browse around the artisan stalls and try some of the local sweet delicacies or visit the "Hippie Market" around the corner. In the evenings, the place to be is Avenida Yaxchillan with its lively restaurants and bars, popular with locals and tourists alike.

Travellers who enjoy going slightly off the beaten track should not miss the Museum of Human Anatomy in Pisa. First opened in 1832, the museum collected thousands of pieces of highly accurate anatomical models made for educational-scientific purposes. Certainly an unusual and macabre attraction. A section of the museum is dedicated to anatomical paintings by Giovanni Paolo Mascagni, who was famed for his mind-blowingly intricate and accurate colour illustrations. Another section contains archaeological finds, such as funerary objects from pre-Columbian civilisations, with fabrics, vases and various utensils, mummies and sarcophagi.