WE WERE about 120 feet from the mouth of one of the caves in British Columbia’s Horne Lake Caves Provincial Parks when Ryan Nelson, our 29-year-old guide, suggested we find a stable perch on the water ...

Fall is one of the best times to crawl deep beneath the Earth's surface, and not just if you're preparing for hibernation. The cave is without a doubt one of the creepiest ecosystems on the planet, ...

Wisconsin may be known for its cheese and lakes, but beneath its rolling hills and limestone cliffs lies a world of wonder waiting to be discovered. From show caves like the popular Cave of the Mounds ...