Roads normally packed with Easter traffic appeared much quieter on Good Friday as Londoners stayed at home during lockdown.
One of the busiest sections of the M25 at Heathrow saw far fewer cars and lorries than normal.
Officials hoped the warm weather wouldn't tempt people outside as warnings were repeated to only leave home if essential.
Famous attractions also saw fewer visitors on Good Friday including around Windsor Castle. A handful of people appeared to use the famous Long Walk to get some exercise.
The picture below compares Easter 2019 at Windsor compared to Easter 2020.
"After all the sacrifices so many people have made, let’s not ruin it now," he said at the daily Downing Street press conference.
"We mustn’t give the coronavirus a second chance to kill more people and hurt our country."
Police warned they were ready to take action against those who flout the coronavirus lockdown rules.
Downing Street offered the Government’s "full backing” to police forces seeking to enforce the restrictions over the holiday period.