Among Vietnam's most stunning images is the aerial view of Tam Cốc: a region of rice fields and steep limestone hills, just south of Ninh Binh. If you're spending any time in the region, it's a photo you'll see over and over again, in the window of every tourism agency, hung on the wall of every restaurant. And every time you see it, you'll think to yourself... "Man, I've got to go there!"
Phong Nha Cave isn't the biggest cave, or even the second-biggest, in the Phong Nha National Park. But it's the one which bears the park's name. So we felt safe assuming that it would be spectacular. And we weren't disappointed; this is an underground wonderland of stunning beauty.