For a better experience on your device, try our mobile site.
in your browser and have the latest Flash plug-in
installed. Please ask an adult for help if you cannot load the video.
Watch Leo walk 15km in one of the driest places on earth.
The CBBC comment forums are open 7:30am to 8pm
wow Leo did really well
Complain about this comment (Comment number 1)
Link to this (Comment number 1)
Add your comment
Sign in with your BBC iD, or Register