An "exceptional" teenager from Radlett has been nominated for an award after raising nearly £40,000 for charity in two years.
Yoni Stone raised the money for projects helping youngsters in Africa and Britain.
The sixth former helped KidzCare in Tanzania, which runs a children's home near Dar-es-Salaam and five pre-schools throughout the country.
The 18-year-old, of Canons Close, was nominated by his school chaplain the Reverend Dr Jan Goodair for Smith Milne Young People of the Year (YOPEY).
Rev Goodair said: "Yoni is an exceptional young man who has devoted a phenomenal amount of time and energy to raising funds for the school's charity, KidzCare Tanzania, which works with needy and vulnerable children."
Along with his solo fundraising efforts, Yoni has led and encouraged pupils at The Haberdashers' Aske's School for Boys in Elstree to raise money for various charities.
Last year he was involved in arranging a fundraising event called Making Change in the World, in which the pupils at the Butterfly Lane school were given a £1 coin and challenged to raise as much as they could with it.
This year he chaired a committee whose major project was Time for Tanzania, in which all 1,100 boys were challenged to give up one hour of their time to engage in fundraising.
He was also involved in a Mencap fun day at the school for 200 youngsters with learning difficulties.
Yoni said: "We organised it so that children can come and have a great day while we entertain them, and the carers can have a break as well."
Yoni has also been active in his community. This year he and friends collected £900 for Jewish charity Kisharon, after raising £1,200 by competing in the Windsor triathlon last year.
Yoni also helped arrange blood-donation sessions at the school. As chaplain, Rev Goodair has worked with the charity committee. She said: "Yoni has been astonishing.
"He has worked with everybody to achieve consensus. He has then taken the lead of allocating tasks and making sure that they are completed.
"Although chairing the committee, Yoni was always first to volunteer for routine jobs such as putting up posters around the school.
"He is a young man of great integrity and compassion. He really does want to make a difference in the world."
This year marks the tenth anniversary of YOPEY. The winner will receive £400 and an additional £400 for a good cause of their chouce.
YOPEY founder Tony Gearing said: "Yoni is an amazing person. He has either personally done so much for charity or led, encouraged and cajoled others to do their bit to raise funds for projects locally or in Africa. All this while studying for his A-levels. Wow."
Yoni is getting ready to go to Morocco for a week in September with a friend on projects that will include distributing food to homeless people, and entertaining kids at an orphanage.
The awards ceremony will be held this autumn.