Paralysed fundraiser Claire Lomas has completed her challenge of riding 400 miles in three weeks using a customised handbike.
Ms Lomas, who was left paralysed from the chest down following a horseriding accident in 2007, became the first person to complete a marathon in a bionic suit last year.
She punched the air with delight after finishing her latest challenge next to the River Thames.
The 33-year-old, from Melton Mowbray, Leicestershire, said: "It's amazing to finish and I'm delighted to get here.
"In the first week there were times when I really wondered what I'd let myself in for.
"It's been so busy, full long days of talking to children and then cycling on. But it's the children's faces that have kept me going, to be in the position to get out there and talk to them about the difficulties I've faced since my accident and how I've rebuilt my life."