Voters are having to queue for more than 45 minutes at some polling stations this morning.
Some are even saying that their station is the 'busiest ever'.
Pictures show lines of voters snaking around street corners as they wait to make sure their voice is heard.
And in key marginal seats like Canterbury, currently held by Labour's Rosie Duffield, where tonight's vote could go down to the wire - students have been pictured lining up to vote.
For Labour strategists hopeful that a high turnout could see them defy the polls and be in Downing St by Friday, the pictures will come as welcome evidence that they can still win.
In Manchester, London, Cambridge, Nottingham and Lincoln people have shared snaps of voters queuing to vote.
But it isn't yet clear if any of this will have any significance on the outcome of the election - or if the anecdotal evidence of higher turnout in big cities will happen anywhere else.
Did you face a large queue to vote today? Email webnews@mirror.co.uk with a picture
But in a number of London constituencies, including the Labour held marginal of Battersea, people are reporting the busiest conditions they have seen.
"I've voted at the same station and time for eight years, but have never had to queue before," said Craig Fordham, 45, from Putney, who had to wait for 15 minutes.
Chris Schofield queued for 20 minutes in the Bermondsey and Old Southwark constituency.
"It's about 20 times busier than it was in 2017, and for the locals and Euro elections," the 27-year-old consultant said.
"Atmosphere is very London: orderly queueing and no-one is talking to each other!"
Mr Schofield said there were over 70 voters waiting outside, adding that there were at least three officers working at the station but only one taking addresses from voters.
Asked why he thought there were so many queuing, he said: "I think it's the election of a lifetime for many of us."
Alixe Bovey said she was queueing for 35 minutes in the Streatham constituency.
Sharing a photo of the queue outside her local station, she tweeted: "In 20 years of voting in Streatham Hill, always at about this time of day, I have never encountered a queue of more than six or seven people.
"What is going on. The tailback is right up the road now."
Ms Bovey told PA: "No idea what it means in my constituency - I'm in a super safe Labour seat."
But the pictures and reports should be taken with a pinch of salt.
While people were reporting the lines in some seats big cities, there are thousands of polling stations across the UK.
Elsewhere in the country councils are prepping for weather making it difficult to get to the polls.
Rain is expected across the country and voters in Bermondsey, south east London, faced difficulty getting to one polling station after an apparent burst water water main caused flooding in the road around it.
Hannah Tookey, who waded through the water to cast her vote, tweeted: "It was too deep to wade through the middle, even in wellies."
But some polling stations are going the extra mile to cheer people up despite the drizzle.
Joining the election regular of dogs at polling stations, this year people will also enjoy wreaths, Christmas trees and other festive decorations.
