More than 200 courageous competitors showed steely determination to conquer the Norfolk Superhero Challenge.
Starting from Burnham Overy Staithe, participants swam, kayaked, cycled and ran 58 miles on Saturday as the gruelling quadrathlon made its return.
With entrants taking part in mixed and same-sex pairs, the event - now in its 14th year - places a strong emphasis on teamwork and looking out for each other in 'superhero' fashion.
The top mixed pair this year was Harry Hitchcock and Benedicte Sampson, who finished in four hours, 26 minutes and 55 seconds.
Ben Hunter-Watts and David Horton-Fawkes were the fastest men's pair, finishing in 4 hours, 44 minutes and 40 seconds. Anna Gurney and Emily Plumb were triumphant in the women's category, crossing the line in four hours, 56 minutes and 13 seconds.
The Local Heroes Award (for the fastest team whose members live full-time in Norfolk) went to Adam and Tom Bamford.
This year's challenge raised money for Holt Youth Project.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here