They're all screaming for ice cream at Carvel in Bayside. But it's all for a good cause.

Sunday is National Ice Cream Day and Carvel is celebrating by offering their annual buy one get one free promotion.

But there's a twist this summer, as the ice cream franchise is partnering with a marine conservation charity to promote the anniversary of their iconic "Fudgie the Whale" cake.

So you can give back, all while satisfying your sweet tooth. 

"It's also Fudgie's 40th anniversary this year so in conjunction with national ice cream day and Fudgie's 40th anniversary, we are donating the proceeds to Save The Whales," said Cavel Spokesperson Robert Wu. 

If you make an online donation of more than $10 to Save The Whales, you'll have chance to win one year of free ice cream cakes. For more information head to