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Fastest human powered circumnavigation of the world

29 year old cancer survivor Sam Greatrex from Birmingham has embarked on a record-breaking journey to travel around the world using only human power, an expedition entitled, ‘Lap the World’.

The challenge? 18,000 miles of cycling and 14,000 nautical miles of rowing across the North Atlantic and South Pacific.

Sam has set off in his bid to break the current record for the fastest human powered circumnavigation in September 14 and aims to raise £240,000 for Macmillan Cancer Support through his worldwide challenge, a total of £10 for every mile of the circumference of earth, after the charity provided invaluable help when he was diagnosed with cancer in 1995, aged 10.

Speaking of his challenge, Sam said: “It’s incredible to have the opportunity to help Macmillan and ensure that no water for round the world trip one faces cancer alone while doing so is the main reason for the expedition.”

Sam will break a further 9 Guinness World Records during his round-the-world journey!

Sam is using 2 Water-to-Go bottles on his journey so he can keep his kit light and his hydration levels topped up!

Two weeks in to his journey, we received this message from Sam:

“There are great physical and logistical demands of a human powered circumnavigation. The reliability of the Water-to-Go bottles saves so much time and effort which can then be put into the physical challenge ahead, instead of planning for water stops. They’re a great investment for anyone out on expeditions and the filtration system is comfortably coping with the demands of keeping me hydrated while cycling in 38 degree temperatures.”

Follow Sam’s amazing journey at

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