Two households or groups of up to six people are now able to meet outside in England again as the stay-at-home Covid restrictions order comes to an end.
Outdoor sport facilities including tennis courts and golf courses are also reopening, and organised outdoor sports can resume in the latest easing.
And weddings will also be on again, attended by up to six people.
But Boris Johnson urged caution, saying cases were up in Europe and variants threaten the vaccine rollout.
The prime minister said: “Despite today’s easements, everyone must continue to stick to the rules, remember hands, face, space, and come forward for a vaccine when called.”
A new slogan – Hands, Face, Space and Fresh Air – was also being unveiled by the government to emphasise the importance of ventilation in reducing the spread of the virus.