The Great Icelandic Swim with Ross Edgley x 3 – Channel 4

  • Channel 4
  • 2025
  • 3 x 1 hours

World-record endurance athlete Ross Edgley embarks on his most dangerous mission yet: to become the first person in history to swim 1000 miles around the entire coastline of Iceland. For nearly 4 months, Ross battles freezing Arctic waters as cold as 4°C, relentless storms, tidal rips, jellyfish swarms, and the constant threat of hypothermia.

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https://www.channel4.com/programmes/the-great-icelandic-swim-with-ross-edgley

(c) James Appleton

But this is more than a test of endurance. Just before the swim begins, Ross and his partner, Hester, announce they are expecting their first child. And Ross is in a race against time — to complete this world-record swim and make it home in time for the birth.

In the first episode, Ross tackles Iceland’s west coast – The Kingdom of the Bull. It’s a brutal start as Ross battles hypothermia, seasickness, tongue rot and isolation. As storms ground him, he learns a new found patience, exploring volcano strewn landscapes and the stunning vistas of the remote Westfjords. Killer whales visit and a new project begins helping Icelandic scientists pinpoint coastal areas for protection.

In this second episode, world-record endurance athlete Ross Edgley continues his extreme mission to become the first person ever to swim 1,000 miles around Iceland, entering the north coast, and the Realm of the Eagle. Storms roll in from the Arctic and the midnight sun blurs all sense of time as Ross battles exhaustion, rotting salt wounds, and freezing 4°C waters fed by Greenland’s rapidly melting ice sheets.

Stranded in Siglufjörður, Ross joins a call out to rescue over 30 stranded pilot whales and discovers how the once-thriving ‘herring capital of Iceland’ was destroyed by overfishing. Reaching Grímsey, the tiny island on the Arctic Circle, Ross’s body begins to fail. His wounds threaten infection, and the crew’s Blue Nose ceremony goes on without him. Back in the water, he battles counter currents and multiple jellyfish stings. After 60 punishing days, Ross finally conquers the north coast, and enters the Land of the Dragon.

In this final chapter, Ross Edgley takes on takes on the last leg of his epic swim around Iceland as he tackles the East and South coasts, the land of the dragon and giant. But two months in, deadly ‘rhabdo’ threatens. Chocolate brown pee is a sign his muscles are breaking down with the strain of swimming two marathons a day. Battling through ice-laden water to a hurricane, Ross now has just 4 weeks to complete the swim if he’s to get back to his partner, Hester Sabery, for the birth of their first child. 

As Ross steadily creeps south, the swim gets tougher and tougher. From poignant scenes as Ross shares the special relationship he had with his father, a surprise fly-by from the Royal Navy to jaw-dropping scenes as passes the massive Vatnajökull glacier, which is melting at a chilling rate, Ross finally completes his last swim with a spectacular send off from the northern lights.  

114 days, and a 1000 miles later Ross arrives home just in time for the birth of their first child.  The series ends not just with a third world record, but with something deeper—a testament to endurance, and the power of dreaming the impossible.  

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The Royal Navy appears out of the blue, off South Iceland to wish Ross good luck!

Told against the dramatic backdrop of Iceland’s landscape with Ross’s trademark humour and honesty, The Great Icelandic Swim with Ross Edgley is a story of physical limits, emotional endurance, and the universal pull of family.

Ross Edgley says: “This has been the most extreme, brutal swim, I’ve ever undertaken. It’s taken me to the brink both physically and mentally. You’re essentially trying to survive in conditions that are constantly trying to kill you. But hurricanes and volcanoes aside, I’ve met the most amazing people whose country has the most incredibly history and heritage. For me, this wasn’t just a swim, but a journey through Icelandic folklore, all wrapped in sagas, mystery and mystique.”

Chris Hemsworth says: “Ross breaks the mould and redefines endurance sport and adventure. He’s what happens when tough and crazy collide. This isn’t just a swim, it was an epic saga that now takes its rightful place in Icelandic folklore.” 

Bear Grylls says: “In achieving this, Ross has rewritten the limits of human potential. In terms of survival it’s hard to explain just how demanding and draining ice cold rough seas are on the body. It takes commitment and resilience to another level”.

Jonah Weston, commissioning editor at Channel 4 says: “Even by Ross Edgley’s standards of limit-pushing endurance, the Iceland swim is extraordinary and, in all likelihood, the toughest swim ever attempted by anyone. This series captures not just the bone-chilling physical challenges Ross faces but also the raw beauty and power of Iceland’s landscapes.”

Sarah Cunliffe, executive producer for Big Wave TV says:  “Brutal, awe-inspiring and heart-warming in equal measures, this is a story of the brilliance of dreaming the impossible, and then doing it.” 

Distributed by Cineflex Rights

Publicity

Meet the man who swam around Iceland - The Telegraph
Swim so extreme tongue his fell apart - Mens Health
goosebumps saving 30 whales - Mirror
how we helped Ross swim around Iceland - Broadcast
hypothermia, tongue rot, sea sickness - TV Guide
if anyone can swim around Iceland, its Ross - Guardian
all before his first baby born - Mirror
  • Series Producer: SARAH CUNLIFFE
  • Director & Photography: LUKE HALLAM
  • Additional Photography : BEN MARSHALL
  • Additional Photography : OLLY JELLEY
  • Additional Photography : NATHALIE GRACE
  • Additional Photography : JOSH TARR
  • Editor: JAMES WILSON
  • Editor: JASMINE KAUR GREGORY
  • Post Production Supervisor : NATHALIE GRACE
  • Production Manager: CORINNE BATTERTON
  • Production Manager: NINA LOWES
  • Production Secretary : TAVIA DAVIES
  • Media Wrangler : MORGAN DAWE
  • Production Support Iceland: COMPASS FILMS
  • Post Facility : THE EDIT
  • Colourist: DAVE AUSTIN
  • Dubbing Mixer : ROSS MILLERSHIP
  • Map Graphics : BRADLEY HUMPHRIES
  • Title Graphics : ANTHONY RUBINSTEIN
  • Head of Finance : PETE DUNKERLEY
  • Archive : CSU/CIRA & NOAA
  • Archive : EUROPEAN SPACE AGENCY (ESA)
  • Archive : POND 5
  • Archive : PREDICTWIND
  • Archive : THE NATIONAL FILM ARCHIVE OF ICELAND
  • Archive : JAMES APPLETON
  • Archive : ED CRABBE
  • Archive : JAMES PERRETT
  • Music: EXTREME MUSIC
  • Music: LONDON SYNC
  • Music: UNIVERSAL MUSIC
  • Music Advisor : PHOEBE HUTCHASON
  • Special Thanks : BIOPROTECT EU CITIZEN SCIENCE PROJECT
  • Special Thanks : CREW OF CLIPPER CV6
  • Special Thanks : MARINE AND FRESHWATER RESEARCH INSTITUTE
  • Special Thanks : MATIS
  • Special Thanks : UNIVERSITY OF ICELAND
  • Special Thanks : WORLD OPEN WATER SWIMMING ASSOCIATION
  • Special Thanks : ANTHONY GODDARD
  • Special Thanks : MARK HUTCHINSON
  • Special Thanks : GER KENNEDY
  • Special Thanks : JÖKULL TANDRI ÁMUNDASON
  • Special Thanks : CHRISTOPHE PAMPOULIE
  • Filming permitted by : NATURE CONSERVATION AGENCY OF ICELAND
  • Distributed by : CINEFLIX RIGHTS