Sandboarders hiking up dunes for another ride, Great Sand Dunes National Park, Colorado, USA (@ Glenn Oakley/Aurora Photos)
- The US state featured today is renowned for its skiing and snowboarding.""In fact, the downhill fun never stops around here
- This is the newest national park in North America, containing the continent\s tallest sand dunes.""They\re formed from deposits of the Rio Grande
- Amazingly, it\s not unusual to spot a kangaroo in these parts.""Do you smell a rat?
- Hiking up loose, hot sand to an elevation of 230m looks like mission impossible.""Surely getting down is a lot easier?