When it comes to endurance tests, more than 4000 people have cimbed Mount Everest, 536 people have gone into space, but only 20 boats have rowed across the Indian Ocean.
Two junior doctors are hoping to add to that number. Ted Welman and Jack Faulkner aim to make the 3,600 mile journey from Australia to Mauritius in around 84 days, which would set a new record.
The pair are taking on the challege to raise £100,000 for the humanitarian organisation Médecins Sans Frontières.
You can follow Ted and Jack's progress at: http://doctorsadrift.com