A Cambridge University student has returned home after completing an 18,640-mile (30,000 km) charity bike ride around the world.
The journey took Peter Dudfield, 25, from Essex, 380 days to complete across five continents and raised more than £14,000 for the British Red Cross International Disaster Fund.
Mr Dudfield said the toughest section was crossing the desert in Australia.
He now plans to take two weeks off "to sleep" before completing his studies.
As well as hauling 66lbs (30kg) of luggage on his bike, Mr Dudfield said one of the most testing challenges was communicating with people in the many countries he travelled through.
'Cockerel head soup'
"My range of hand signals is now extensive," the PhD student from Saffron Walden said.
Regional food also presented challenges.
"I learnt to steer clear of ordering chicken heads, a mistake I made in China when I was presented with a soup with cockerel heads floating about," he said.
The most difficult part of the journey was cycling across the Australian desert.
"There's just nothing out there, it was 12 days of nothing except eating tuna and pasta," Mr Dudfield said.
"There wasn't even water. You had to flag down cars to get that."
He completed the final leg of the journey on Sunday evening, arriving back in Cambridge to be welcomed by friends and family.
"There have been a few hairy moments along the way with snakes and poisonous spiders, not to mention bears and wild dogs. Wild dogs are really scary," he said.
"It's good to be back home though. I'm taking two weeks off just to sleep and eat proper food, then it's back to my PhD."