The seven-year-old boy who died after being found at the bottom of cliffs in Ballycastle, County Antrim, was Logan Crawford, who was from the town.
Logan was missing for at least an hour on Sunday evening.
He is believed to have been playing with friends near a holiday park when he fell from the cliffs.
The boy's school principal said Logan's death had left "a void that will never be filled".
Diana Evans, of Ballycastle Integrated Primary School, said: "It was an absolute pleasure knowing Logan and having him at our school.
"He was a wonderful wee boy with a real zest for life. He was one of the most well-mannered, polite little boys I have ever taught.
"Everyone loved him because he was a real character and such a joy to be around."
She added: "We have such fond memories of Logan. He always took great pride in his hair and it brought a smile to my face every day I saw him walking though the dining room doors with his wonderful hairstyles.
"He was just one of those little boys who holds a special place in your heart.
"On behalf of the school and the board of governors, we would like to extend our sincerest sympathies to the family circle at this very sad time.
"There will be support provided for pupils and staff over the next few weeks and into the foreseeable future."
The alarm was raised on Sunday night and the search for the seven-year-old involved the RNLI, Coastguard and a Royal Navy helicopter.
Logan was taken to the Causeway Hospital by helicopter, but died.
Dawn Petrie of Belfast Coastguard said: "About twenty past seven last night we were alerted by both the police and the ambulance service that a child was missing in the vicinity of Silver Cliffs caravan park in Ballycastle and having possibly fallen off the cliff.
"We had a large multi-agency response initiated with specialist cliff-trained coastguard rescue teams from Ballycastle and Coleraine, lifeboats from Portrush and Red Bay a Royal Navy rescue helicopter, police and ambulance personnel.
"The area was thoroughly covered by our rescue teams and it was the Royal Navy rescue helicopter from the air who spotted the child at the bottom of the cliff.
"They initiated their winch procedures, put their winchman down at the scene, lifted the child into the helicopter and transported him to the Causeway Hospital in Coleraine."
A North Eastern Education and Library Board spokesperson said: "The board deeply regrets the very sad and tragic death of seven-year-old Logan Crawford, who was a pupil at Ballycastle Integrated Primary School.
"Our thoughts and prayers are extended to the family circle at this very sad time.
"The board's critical incident team are in place at the school, providing counselling support to pupils and staff.
"A special assembly took place in school earlier today."