St Lucia Catamaran Day Sail. Sail along the west coast of St Lucia aboard a catamaran on this full-day excursion. Visit some of the island's highlights, like Sulphur Springs, the region's only drive-in volcano. See the marvelous Pitons, looming 2,000 feet (600 meters) over the coast and stop at the Diamond Botanical Gardens to view the waterfalls. After an included buffet lunch, return to the boat for a relaxing swim in the Caribbean's tropical waters. Book and Save 10%: St Lucia Catamaran Day Sail.