Two north London teenagers have journeyed into Camp Simcha's good books after completing a sponsored ride through every London Underground station.

Starting at Chesham at 5.15am, Daniel Sassoon and Aaron Rudolph, both 19, completed their 270-station trip at Heathrow in just under 18 hours 18 minutes. They are closing in on their £1,500 target for the charity, which supports children with serious illness and their families.

"We chose Camp Simcha because Aaron has experienced first-hand as a volunteer the great work they do," Daniel said. "We were also inspired to do this after one of my friends at university was diagnosed with cancer."

It was not the duo's first charitable tube challenge - they did it initially in 2013. But their latest effort was almost an hour quicker.

"We are both kind of fascinated by London Underground, transport geeks really," Daniel admitted. "In fact, a mutual friend introduced us for that reason.

"We were very happy to improve on our previous time. It would have been 10 minutes less if we hadn't just missed a train at Mill Hill East."

Camp Simcha chief executive Neville Goldschneider complimented the pair on their "brilliantly imaginative way to raise money. It will help us provide the vital practical and emotional support services we offer to more and more families."