Watch as Alan Saunders, a blind Royal Marine war veteran completes Europe's longest Zip Wire on his 92 birthday to raise funds for Blind Veterans UK. Bethesda's Zip World plays host to Alan and the staff from Llandudno's Blind Veterans centre as they attempt the mile long Big Zipper and raise thousands of pounds in sponsorship. See http://www.blindveterans.org.uk and www.zipworld.co.uk.