The couple have been to the Isle of Man and are currently in the Scottish islands. They plan to sail to Scandinavia and want to cross the Atlantic.
Ms Webb said long-distance sailing was “safer than driving a car every day”.
“When you’re sailing, you need to think and you need to plan, and it helps keep us mentally alive,” said Mr Webb.
“A lot of people can’t imagine how the two of us, aged 70 and 65, can handle the boat by ourselves, and we do have an argument once a day on average, but I’m extremely lucky to find somebody who loves sailing so much,” he added.
The couple said they are loving life and have no plans to return to Portishead.