"The Crystal Caves of Bermuda, an otherworldly network of caves and subterranean lakes, was first discovered in 1901 by two Bermudian boys who were trying to track down a lost cricket ball. What they eventually uncovered is now one of Bermuda’s true hidden treasures—a cavernous, watery world, complete with centuries-old stalactites and stalagmites. Today, guided tours take visitors deep inside these two Ice Age–era caves where you’ll descend about 120 feet below ground for an unearthly natural experience. A word of caution, though: a tour through the Crystal Caves of Bermuda is not for the faint of heart or for the claustrophobic—the spaces that lead to the caverns are tight. The tour operators recommend that prospective visitors reach out in advance of arrival; walk-in tours are available during peak season." - Katherine Cusumano
