Professional surfers in Hawaii are helping kids manage their cystic fibrosis via the natural inhaled saline therapy of the ocean.

The Mauli Ola Foundation, which means breath of life, was founded 10 years ago. Based in Hawaii, the foundation travels across the US and Australia, making hospital visits and hosting other surf experience days.

“This is my favorite thing ever to see these kids who’ve been hospitalized and sad and to see them so happy out there,” said professional surfer Koa Rothman. “Some of the doctors say they haven’t seen them smile in three months and they come out here and they can’t stop smiling and they’re having a great time with friends, it’s just a really beautiful thing.”