Known as the nature island, this Caribbean spot resembles something straight out of Jurassic Park. It's mountainous design and lush tropical forests make this a must-see for avid hikers. It is also home to the Boiling Lake Hike - a challenging adventure through the jungles and sulfurous Valley of Desolation. But because of its geographical make-up, it is also a breeding ground for sperm wales and many other migratory wales pass through - so get your binoculars and head on a whale watching tour!