VI National Park covers two-thirds of St John, plus 5650 acres underwater. It’s a tremendous resource, offering miles of shoreline, pristine reefs and 26 hiking trails. The park visitor center sits on the dock across from the Mongoose Junction shopping arcade. It’s an essential first stop to obtain free guides on hiking, birdwatching, petroglyph sites and ranger-led activities. Green iguanas, geckos, hawksbill turtles and wild donkeys roam the landscape. A couple of good trails leave from behind the center.