In a pre-recorded television statement Sunday night, Johnson revealed a roadmap to resume activity in the country after more than six weeks during the lockdown.
Until Johnson's announcement, residents with jobs were considered unimportant, advised to leave the home only for local training once a day and to buy food or medicine.
"From this Wednesday, we want to encourage people to take more and even unlimited amounts of outdoor training," he said.
"You can sit in the sun in your local park, you can drive to other destinations, you can even play sports, but only with members of your own household."
The Secretary of State's announcement was aimed at relaxing the messages surrounding the UK's lockdown, while more details on exactly what measures will be eased are expected on Monday.
In his address, Johnson officially launched the government's new slogan, replacing "Stay at home" advice to save lives, to "Stay alert."
Johnson announced a new five-level warning system, much like it already uses to assess terrorist threats. He said the country was now at level four, with five being the highest threat level, and by relaxing restrictions, the country could soon be at level three.
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Jenrick defended the new message, saying on the BBC's Andrew Marr Show that "we need a more nuanced message" and that staying home will "still be an important part of the message."
This is not the first time the British government has criticized its communications with the public in its response to coronavirus. Johnson telegraphed earlier this week that he hoped any changes to the nation's lockdown announced Sunday would take effect as quickly as Monday.
His lack of details on what measures could be relaxed spurred a lot of speculation in British media.
The suggestion that Monday could lead to new freedoms seems to have affected people in London: hundreds were photographed in parks sunbathing and having a picnic, as sunny weather tempted them to break the rules of confinement over the weekend. Police said they were forced to disperse groups who drink beer and wine and share pizza.
The government's new slogan has also put it at odds with Britain's smaller three nations.
Wales, Scotland and Northern Ireland have extended their lockdowns to May 28, and officials from all three nations said there had been no coordination between their governments and Downing Street over the new message, and they would continue to spread "stay home" "message among their own people.