Imagine riding 500 kilometres in difficult terrain with temperatures between 35 and 40 degrees and the humidity sitting at 85 to 90 per cent.
That's exactly what Chris Henry endured in Thailand earlier this month in the name of helping others.
His efforts have helped raise more than $450,000 for the charity Hands Across the Water, which assists orphaned children.
"It was challenging enough with those conditions, let alone the hills. The support team that Hands Across the Water provided were phenomenal. It was one of the best experiences of my life. When you are contributing to something like that - something much bigger than yourself and your business, it's very humbling," he said.
Mr Henry joined 69 riders in the Digital Live team who were split into two groups. One tackled the Mekong ride while the others took the South Coastal route.
Read more:Gearing up for a 500km challenge
"I would go from the front of the pack to the back of the pack a lot to support the group. There were several strong riders who would do that," he said.
"The people on the ride run large teams and large organisations, or are responsible for a lot of people. The level of intelligence in that group was by far the most outstanding thing to be involved in. The conversations at that intellect were phenomenal."
Mr Henry had been in intense training for the ride for several months. He said that helped him to get to the finish line.
"The preparation work I'd been doing was the greatest asset in getting the body prepared and the mindset prepared for endurance," he said.
"When I went there I didn't want to be one of the riders who needed support and assistance during the journey, I wanted to be the one to provide support and assistance to the rest of the group to make sure everybody got over the line.
"There were some really tough days, but we all got there."
Mr Henry returned home just before the mandatory self-isolation was enforced for anyone entering Australia. He chose to self-isolate as a precaution.