Lizzy is Spot on
Another great, and more tangible, way of following her is via her Find Me Spot locator profile, via her Spot Satellite GPS Messenger. The product is really cool and for about £150 could be a lifesaver:
The SPOT Satellite GPS Messenger provides a vital line of communication with friends and family when you want it, and emergency assistance when you need it. Using 100% satellite technology, SPOT works virtually anywhere in the world, even where cell phones don’t – all with the push of a button.
More info here