This story appears in the November 2012 issue of National Geographic magazine. I got my first lesson in the physics of sand dunes in 1998 on an expedition into the Sahara. In order to take aerial ...

RELATED: From woods to sand dunes: 3 spots to fat-tire bike ... Gates are open from 8 a.m. to dusk, so stick around for a sunset atop the dune or at the shoreline. Check rules and conditions ...

San Francisco's Outer Sunset neighborhood could soon look a ... "My home was built when there were only 12 houses on the block in the sand dunes. We were built on sand," Lazear told CBS News ...

In the summers, beachgoers can enjoy a sunset stroll. In the frosty winters, they can witness the unparalleled beauty of Lake Michigan. The park, known for its rare ecosystems and towering sand dunes, ...

This giant sand dune in southern Spain is about 98 feet high and 656 feet wide, making it one of Europe's largest sand dunes. What is perhaps even more fascinating is what hides beneath it.

Sunset is the best time of the day to explore ... Whether you’re zipping across the dunes in your buggy or gliding down a sand dune on your board, this tour guarantees plenty of action and ...