National Geographic Weekend   /     Hitch-Hike the World, Learn Why We Sleep, Hike 2,600+ Miles in Winter, Scuba Dive in Greenland, and Start (Controlled) Forest Fires

Description

This week, we hitchhike from Tasmania to London, get a good night's sleep, protect a 300,000 miles of ocean, hike 2,600 miles in winter, and stop forests from burning down.