Two years ago, Afloat.ie reported on Britton's adventures in southern Iran, where she was filmed by French documentary maker Marion Poizeau as she took to the waves in a full-length 'hijab swimsuit' – becoming the first woman to surf in the country's waters.
Since then she's set up Waves of Freedom, with the aim of encouraging the women and youth of the remote Baluchistan region of Iran to get into surfing.
And she's been joined by Poizeau, whose new documentary Into the Sea weaves Britton's story together with those of two women her trip inspired: Iranian snowboarder Mona and diver Shalha.
Both have taken Britton's lead in introducing surfing to everyone in Iran, but especially women and girls – sharing "a belief in the power of sport to break down barriers and connect with others".
The 52-minute films is available to download or watch on demand at Vimeo.