Glen Torridon is said by geologists to be the oldest glen in the world. We can see in it the very beginning of geological time as everything is revealed, scalped to the bone.

Tom takes a stunning trip through the skies over Loch Lomond in a hot air balloon, learning all about how this method of transport works, while enjoying breathtaking scenery.

Loch Maree is the largest freshwater loch North of the great glen, named after St Mael Ruba, and Tom takes a tour round one of her many islands finding some fascinating sights.