Two smiling tourists from New York are proof that seeing is believing.

CNN: 'Super Gras' a big score for New Orleans

Our other premise was that seeing is believing.

FORBES: Japan Tourism Rides Out the Perfect Storm

The journey is to benefit Seeing is Believing, a charity which tackles avoidable blindness.

BBC: Ranulph Fiennes pulls out of Antarctic challenge

The journey will benefit Seeing is Believing, a charity which tackles avoidable blindness.

BBC: Ranulph Fiennes evacuated from Antarctic base

In 2003, the year of its 150th anniversary, the bank established Seeing is Believing, a program that raises money to combat preventable blindness around the world.

FORBES: A Higher Ambition for CSR: Corporate Social Purpose

The Seeing Is Believing West Africa project is mapping local areas to provide more in depth information to farmers via their phones.

FORBES: The Untapped Potential of the Mobile Phone

Phase one of The Coldest Journey expedition - which aims to raise millions of pounds in donations for the Seeing is Believing charity to tackle avoidable blindness - begins later when the icebreaker SA Agulhas sets off from the River Thames.

BBC: Sir Ranulph Fiennes' 'coldest journey' begins

But despite the hype, seeing really is believing when it comes to Switzerland's Alpine heartland, a region perfectly explored on a long summer weekend.

BBC: Search the