An extreme athlete planning to “run” from Florida to Bermuda in a bubble is considering his options after being given an ultimatum by the US Coast Guard.

Using a home-made “hydro pod”, 44-year-old Reza Baluchi had announced plans to run to Bermuda before turning towards the Caribbean as part of an epic journey to promote world peace and raise funds for Plant-Unity, a charity that supports educational opportunities for children.

He unsuccessfully attempted the feat in 2014, but he has reportedly been told that he must come up with a self-rescue plan before setting off or the Coast Guard would end the effort.

In a statement, Petty Officer Eric Woodall said: “If Mr Baluchi intends to attempt another hydro-pod adventure on the high seas he will need to provide his plan for vessel escort and self-rescue before departing.

“The Coast Guard has a proud history of providing life-saving service to mariners in distress. However, we will not unnecessarily risk the lives of our Coast Guard men and women. As part of our dedicated service to this nation, we are obligated to ensure taxpayer money and resources are used efficiently and appropriately.”

Mr Baluchi’s previous effort, which ended around 70 miles off the coast of St Augustine, Florida, led to a rescue effort which cost more than $140,000.

While it had been reported that Mr Baluchi was considering beginning his trek today, he told the Sun Sentinel he was considering his options in the wake of the Coast Guard statement.

“I don’t know what to do. I don’t want to fight with the Coast Guard. I want peace. I’m a lover, not a fighter,” he told the Florida newspaper. “I want to find a lawyer to help me.

“I don’t want a boat to follow me. I know it’s dangerous inside the ocean, I don’t want to risk other people. It’s my choice, my life.”