A sign attached to the fence reads: "No access - do not enter".
Upon arriving, Mr Trump was helicoptered to Winfield House, the United States ambassador's residence in London's Regent's Park, where a "ring of steel" has been set up to keep protesters at arm's length.
On reaching the residence the pair walked across the lawn hand-in-hand.
For Gorgeous, Trump has singled out marginalised groups in his presidency.
Trump insists he has ‘very good’ relations with Merkel
Nato's secretary-general said the primary focus should be on all members reaching the current target of 2%. Not only that, but Trump's suggestion that the U.S.is entitled to a "reimbursement" is absurd.
"The President is not avoiding anything", he said.
The petition against Trump claimed an official state visit would be embarrassing for the Queen.
May will seek to put the tensions behind her when she hosts Trump later Thursday for a black-tie dinner with business leaders at Blenheim Palace, the birthplace of World War II prime minister Winston Churchill.
The event will begin with a military parade featuring the bands of the Scots, Irish and Welsh Guards in the spectacular Great Court.
They stood with the Mays to listen to the bandsmen of the Scots, Irish and Welsh Guards, who played the Liberty Fanfare, Amazing Grace and the National Emblem.
Cheddar Gorgeous has helped organise the drag protest against Trump on Friday. Our correspondent Catherine Drew reports from London. "Be aware of your surroundings (and) exercise caution if unexpectedly in the vicinity of large gatherings that may become violent", it added.
Parents of trapped Thai boys in dark about their children
Monday's rescue effort took about nine hours, two fewer than the day before, in a sign of growing confidence and expertise. The boys brought out of the dark, winding cave on Monday are "safe and conscious", said Chiang Rai province acting Gov.
A high metal fence has been erected around the USA ambassador's central London residence where Trump will spend Thursday night and the embassy has sent out an alert warning Americans in London to keep a low profile in case protests turn violent.
Later, Trump will take tea with Queen Elizabeth II at Windsor Castle, a home to the royals for 1,000 years, part of a tour created to keep him away from protesters. A baby-shaped Trump balloon is expected to fly over Parliament on Friday morning.
Shrugging off the plans for mass protests, which will include a giant baby-shaped blimp bearing Trump's features, he said in Brussels: "They like me a lot in the UK". This despite a trip choreography created to have him spend as little time as possible in London and keep him out of sight.
Yet Trump's schedule will largely keep him out of central London.
Matthew Butcher, an anti-Trump campaigner and one of the "babysitters" of the balloon, said: "I think that the thing that the Trump balloon does is that it brings an element of fun to the protests, but it also gets under Donald Trump's very thin skin". "I don't know (if) that is what they voted for", he added.
He said the stunt aims to "hold up a mirror" to Mr Trump's "toddler-like politics". "So why would we do it to our ally?" "I was happy when Obama did it".
She'll also be hoping Mr. Trump ignores the thousands of people protesting his visit. The UK's speaker of parliament made clear that Trump, because of his values, would not be invited to address MPs.
Judge Kavanaugh and the Supreme Court's Second Amendment
Still, Kavanaugh has a reputation as a stalwart conservative, bound to shift the political balance of the court. Speaking to reporters, she said, "The healthcare issues are very important to me".