‘Adam Peaty helped me learn to swim’

Dietrich is taking part in The Thousand Mile Challenge to help raise money for Children in Need.

Groups from BBC radio stations across the UK are attempting to swim 1,000 miles (1,609km) collectively by the end of Friday.

Dietrich, who is attempting to swim at least 50 lengths, said Peaty had helped him gain more confidence in the pool.

“If you put me in deep water, I will struggle and panic,” he said.

“I think it’s a bit of a fear thing for me. Putting my head in the water is just not comfortable, so it’s proper out of my comfort zone.

“I never would’ve jumped into the water back first or dived in at all, whereas now I feel pretty confident in doing that.

“I feel way more confident, I feel like I could turn up to a leisure centre and get in the pool and not feel insecure that people are looking at me thinking I’m an idiot.

“They probably are, but I don’t feel insecure in that.”

To find out more, head to bbc.co.uk/swim, external.