Photos: Author The ATV that we’d rented for the occasion rolled through the green mountains; we moved from mountain tops to the bottom of a river valley, and I later learned that those currents shape the nearby hollows, running through caves and narrow canyons. Our destination was Topes de Collantes. We were coming from the beautiful city of Trinidad and its Valle de los Ingenios, or “Valley of the Sugar Mills,” which was declared a World Heritage Site twenty-four years ago.

Photos: Raudel del Llano Entering the Gran Caverna de Santo Tomás, Cuba’s largest cave system, is a unique, unforgettable experience. With 46 km of galleries, it features all of the elements that are part of Cuba’s natural scenery, as well as special highlights of its natural and social history.