Sean started in April with a 3,350 mile cycle from his home in Lulworth Cove to Scarborough.
He then swapped his bike for running shoes and from this point, he will end up running more than 1.5 million steps down the east coast of England until he gets to Brighton where he will start the final leg.
From Brighton, Sean will swim 390,000 strokes (100 miles) across two intensive weeks with only a self-made raft to sustain him.
This will take him along the Sussex coast and, finally, back to Lulworth Cove.
Sean is currently in Essex and aims to be in Southend on Saturday.
He is the first and only man in history to cycle, swim and run the length of Britain. He completed the record-breaking feat in 2015 when he ran from John O’Groats to Land’s End in just 44 days, having previously cycled and swum the route.
Sean was born in Harare, Zimbabwe, and spent his early years climbing trees and chasing elephants out of his garden.
He sold his photography business for just £1 to pursue his dream of becoming a full-time extreme endurance adventurer and break records in the process.
Following him every step of the way has been the Discovery Channel, preparing a programme on the amazing feat.
For more information or to keep track of Sean’s progress go to the Discovery website.
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