Hiking

It can cross difficult terrain that typical wheelchairs cannot.
These spectacular adventures will take you above, below and beyond.
The Olympics aren't the only reason to explore Rio.
She's defying odds with the help of groundbreaking technology.
The duo raised more than $1,000 for animal welfare.
"There's something so dynamic about a forest environment," she said.
Guess who was always ahead of the group, and the first to reach Machu Picchu on the fourth and final day of the Inca Trail? This girl.