These two unusual mountains, named a UNESCO World Heritage Site in 2004, rise precipitously from the cobalt-blue Caribbean Sea just south of Soufrière. The Pitons are, in fact, the symbol of St. Lucia. Covered with thick tropical vegetation, the massive outcroppings were formed by lava from a volcanic eruption 30 to 40 million years ago. They are not identical twins since—confusingly—2,619-foot Petit Piton is taller than 2,461-foot Gros Piton, though Gros Piton is, as the word translates, broader. Gros Piton is the easier climb, though the trail up even this shorter Piton is one very tough trek and requires the permission of the Forest & Lands Department and a knowledgeable guide.
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