On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

Cave diving combines the thrill of scuba diving and with the excitement of exploring a cave; it’s a challenging activity even for experienced explorers. At these four sites — some of the most popular ...

Ever dreamed of diving into crystal-clear freshwater caverns, surrounded by ancient rock formations and shafts of sunlight piercing the depths? If you’re curious about Mexico’s famous cenotes and want ...