Gareth Morgan labelled 'selfish' as Kiwi donors threaten to pull funding if he gets involved

People who have donated to a crowdfunding campaign to raise $2m to buy a pristine New Zealand beach for the public say they will withdraw their offers if Gareth Morgan's pledge to cover any shortfall is accepted.

Mr Morgan has offered to meet any deficit on the target but has faced criticism over his comments that he would like exclusive access for his family for a period before handing over the property to the New Zealand public.

This morning he clarified on TVNZ's Breakfast that the period would be "10 years, maybe".

"Ultimately, the public gets ownership of the whole thing - not just access," Mr Morgan said.

Duane Major and Adam Gard'ner aren't happy with Morgan's wish to have part of the beach for personal use. Source: Breakfast

However, campaign organisers Dwayne Major and Adam Gard'ner said Kiwis will raise the total without Mr Morgan's help.

"It is a very generous offer if you look at it in one sense ... but it really isn't in the spirit of the campaign," Mr Major said.

Some of those who have donated on the Givealittle page said they would rescind their offer if Mr Morgan was taken up on his suggestion.

"I will be withdrawing my offer of support if Gareth Morgan is donating on terms more favourable than myself and others who have already donated," wrote Edgie.

"Yep, I agree, will be withdrawing my pledge if Gareth Morgan gate crashes everyone elses good work," added Paul.

"Gareth if you want to buy a beach Mururoa is available."

Vicki said that Mr Morgan was donating for his own "selfish" purposes.

"I may never visit this beautiful place but my children, grandchildren and friends may like this opportunity.

"What you are doing is amazing but people donating and demanding terms to their donations is wrong."

At time of writing, the amount pledged stands at $1.624 million - 81 per cent of the target - from 25,743 donors and the campaign closes in four days.

Morgan has offered to pay the difference for a pristine beach in Abel Tasman. Source: Breakfast