Henderson began sailing aged 13. After spending a short period of time with the
Sea Cadets, she decided to pursue a career in sailing. Following a season working with "Girls for Sail" (the UK's only all-female sailing school), Henderson skippered three
ARC Trans Atlantic races, twice as youngest skipper in the race. She has raced three Caribbean seasons, skippered the
RORC Caribbean 600, competed in two editions of the
Fastnet Race, and gained further experience teaching and offshore racing in Europe. She was selected as skipper of
Visit Seattle in the 2017/2018
Clipper Round the World Yacht Race. Two days after her 25th birthday, Henderson skippered Visit Seattle to second place in the 2017/2018 Clipper Round the World Yacht Race. She was the youngest
skipper in the Clipper Round the World Yacht Race history. The same race saw
Wendy Tuck become the first woman to win a round the world race. Henderson will be a guest skipper on
Maiden's global voyage in 2018 in support of The Maiden Factor Foundation. In June 2019, Henderson joined the winning team "Sail Like a Girl" to compete in the
Race to Alaska, an engineless boat race from
Port Townsend, Washington, to
Ketchikan, Alaska. In November 2019, she accompanied the environmental activist
Greta Thunberg on her return voyage to Europe aboard the catamaran
La Vagabonde. == Personal life ==