Velocity at Zip World Challenge 2018 Donate Fundraise To set up your 'Velocity at Zip World Challenge' Fundraising Page, please click 'Fundraise' above and follow the instructions provided. To support our participants and make a general donation, please click 'Donate'This Summer, our amazing Team Haven participants will be tackling the longest zip line in Europe and the fastest in the world at Penrhyn Quarry. To register your interest in taking part in the challenge please get in touch here. More details about the challenge itself are available here. Our participants and their supporters are aiming to raise as much money as possible for Breast Cancer Haven, any help you can provide would be greatly appreciated.