Dan's Cave looks like the entrance to the underworld. Two divers swim along a luminous blue-green passage, flashlights cutting through the water, a dark mass of stalactites suspended overhead. This is the breathtaking National Geographic cover photo taken by Wes Skiles (1958-2010), a top nature photographer who died in a diving accident before the issue was published.
ThriftBooks sells millions of used books at the lowest
everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We
deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15.
ThriftBooks.com. Read more. Spend less.