Amazing Underground Walks
Want to go on an amazing vacation this summer filled with adventures that would even make our notorious explorer Ransom Riggs jealous? Well then, it might be time you check out one of these amazing underground destinations.
Not all of them are tourist-free meccas of ecological wonder; some are downright urban destinations, like Montreal's Underground City that boasts about 20 miles of malls, hotels, banks, offices and more. If you are looking for something off the beaten path though, the Aktun Chen Eco Park Caves in Yucatán, Mexico (pictured) provide all the cave exploration you can handle, all located under a massive, pristine rain forest.
[Image courtesy of Dtraveller's Flickr stream.]