Stunning mountain peaks, lush rainforest, and perfectly turquoise water. Discover this Caribbean gem on a Cruise to St. Lucia. This Caribbean island offers a unique opportunity to immerse yourself in the raw power of Mother Nature at her finest. On a Cruise to St. Lucia, visit the only drive-in volcano in the world, explore the natural wonders of the wild or simply relax with a good book on an even better beach. St Lucia truly has it all. Book a Caribbean cruise and discover St. Lucia's sandy white beaches, vibrant tropical foliage, and authentic island food.