It is the world's fastest and Europe's longest zip line.

Eastern Daily Press: A 20-strong team of fundraisers who will take on the world's fastest zip line to raise money for the Norfolk and Norwich Association for the Blind. Pictured are fundraisers from the charity's 2015 trip. Picture: Andy NewmanA 20-strong team of fundraisers who will take on the world's fastest zip line to raise money for the Norfolk and Norwich Association for the Blind. Pictured are fundraisers from the charity's 2015 trip. Picture: Andy Newman (Image: Archant)

Thrill seekers can reach speeds of up to 100mph on the one mile long aerial runway in Bethesda in north Wales.

Next month 20 daredevils from across the county will take a ride on the Zip World zip line to raise money for a Norfolk charity.

Organised by the Norfolk and Norwich Association for the Blind (NNAB), the charity will take their two minibuses packed with fundraisers to Wales on May 20.

Eastern Daily Press: A 20-strong team of fundraisers who will take on the world's fastest zip line to raise money for the Norfolk and Norwich Association for the Blind. Pictured are fundraisers from the charity's 2015 trip. Picture: Andy NewmanA 20-strong team of fundraisers who will take on the world's fastest zip line to raise money for the Norfolk and Norwich Association for the Blind. Pictured are fundraisers from the charity's 2015 trip. Picture: Andy Newman (Image: Archant)

Two of the people taking part are husband and wife Robert and Emily Coyle.

The couple, who live in Costessey, are hoping to raise £500 between them for the NNAB because they come across people through their work who have used its services.

Mr Coyle said: 'My wife works at the Norfolk and Norwich University Hospital as an occupational therapist and she knows the charity from her work there.

'I am a primary school teacher at Stretton School, in Norwich, and every year I teach the pupils about blindness and visual impairment.

'The charity helps a lot of people every day without a lot of exposure. It is local and they help a lot of people I have met through the scouts and work.'

The 38-year-old said he is 'slightly apprehensive' about taking on the zip line - which is launched from a 500ft high platform.

'It is something a little bit different,' he said. 'I think these things always have to be a bit of a challenge.

'I think there will be a point when I am standing at the top saying 'this is not a good idea'.

'We have both been involved with scouts so we are both quite adventurous. Having children we cannot do much like this at the moment.'

This is the second time the NNAB have had a fundraising team tackle the challenge - a team of nine raised around £5,000 in 2015.

Jeremy Goss, head of fundraising, said: 'We try to come up with fundraising ideas which catch the imagination and challenge those taking part. Letting go at the top of a mountain and allowing gravity to do its thing requires considerable nerve – it's the closest thing you can get to actual flying.'

To sponsor the Coyles click here

For more information about the charity visit The Norfolk & Norwich Association for The Blind