Cenotes (sinkholes) are deep wells with crystal clear water that can be accessed when the roof of a cave collapses. Fed by underground rivers, the cenotes were the main source of freshwater for the Mayans and therefore are considered sacred. They are unique to the Yucatán peninsula, and still to this day, the underground cave system connecting all the cenotes remains largely unexplored. Witnessing the breathtaking beauty of the large clusters of stalactites and stalagmites being mirrored in the crystal clear cool waters is a unique experience. Every cenote has its own particular beauty, and putting on a swimsuit and snorkeling in the pool is an absolutely unforgettable experience. Some tour operators also offer cave diving excursions for very experienced divers.

Free daily themed walking tours exploring the city’s history with a choice of up to fifteen different subjects to select from. Most tours start outside the West Front of Exeter Cathedral, or from the Custom House at Quayside.

Nowhere else in Düsseldorf can one feel the city’s heartbeat so clearly as in the Altstadt. Those who want to party, people in search of culture or history lovers will all be equally well catered for in this area between the Rhine and Heinrich-Heine Allee, that covers an area of less than half a square kilometre. This tiny space is crammed with around 260 eateries, pubs, bars, discos and restaurants, and one would be hard pressed to find the like in any other city. The Altstadt is also home to Altbier – a real Düsseldorf speciality.

Bogotá is a major attraction in the world of street art — enough to compete with the likes of Miami, Amsterdam, Río, and México City! You can stroll around and find the graffiti at random, finding surprises around every corner. Or you could join a walking or biking tour of the city and get an eye-opening look into Colombia’s tumultuous past and hopeful future as depicted by local artists. You'll learn about artists and get the necessary background to truly understand Bogotá's street art. The whole city is a museum!