These swimmers weren't put off by the freezing temperatures, sharing photos on social media of their snowy swims - whether in outdoor pools, ponds or even the sea.

There are plenty of interesting weather-related sights that are being captured across the UK.

In Leeds, the icy temperatures have caused large parts of the canal in and around the city centre to freeze over.

Here's a weather update from the Met Office.

In the next few hours, the worst-hit areas will be Gloucestershire, Somerset, Wiltshire, Berkshire and Oxfordshire, it says.

Image source, Reuters

The Duke and Duchess of Sussex have arrived in Bristol for a day of royal engagements.

It may not be so obvious in this picture, but Bristol is among the places that have been hit by plenty of snowfall.

They were greeted by the public and will later embark on a tour of the Bristol Old Vic theatre, which is undergoing an extensive restoration.

As the snow and ice continues, here BBC Weather's Simon King looks at where will be worst hit.

Here's a graphic explaining stopping distances in the snow and ice.

If you can't remember from your driving test, a car's stopping distance is equal to a person's thinking distance plus the braking distance.

According to the RAC, following too closely to other cars is one of the biggest causes of road accidents in the UK.

And the faster a car is travelling, the longer it takes to stop.

The snow has been causing disruption for many, but there's also been plenty of fun.

Here are some of the best photos of the snow in Wales.

A heartwarming story comes from a supermarket in Cornwall, where a pregnant mother went into labour during last night's snow chaos.

Roxanne took shelter in the Asda supermarket in Bodmin as her contractions started.

Little Amelia Campbell made her appearance in hospital shortly after, weighing 5lbs 5 oz.

Despite the adverse weather, life has not ground to a halt.

Those clearing roads, pavements and making things a bit safer for everyone are being praised on social media for their hard work.

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The Met Office has updated its weather warnings, external:

• Yellow warning for ice between 13:00 Friday and 11:00 Saturday for most of the south of England and south Wales. Friday's snow will gradually ease but temperatures will fall and lead to ice
• Yellow warning for snow and ice for the east of England, parts of north Scotland, Wales and Northern Ireland from 12:00 on Friday until 12:00 on Saturday. Up to 5cm of snow in northern Scotland, and up to 4cm of snow in higher areas elsewhere
• Yellow warning for snow and ice in the north of England and parts of Scotland from 00:00 on Monday until 14:00 on Monday.

Image source, Tony Kolour

The chilly weather hasn't just created snow and ice on pavements and roads.

Rivers in North Yorkshire have been affected, with these bizarre "ice pancakes" forming.

Tony Kolour took these pictures on the River Swale in Richmond.

He said: "I've lived in Richmond since leaving the Army in 1976 and no-one I know has ever seen them before."

Image source, Tony Kolour

The Met Office says "ice pancakes" are a relatively rare phenomenon that tends to occur in very cold oceans and lakes.

They are most frequently seen in the Baltic Sea and around Antarctica, but also form relatively frequently on the Great Lakes of the United States and Canada.

A spokesman said: "They are believed to form when foam on a river begins to freeze which begin to join together as they're sucked into an eddy [a swirling current of water] and form into a circular shape as a result.

"As other bits of frozen foam and ice hit the forming disc they freeze to it and increase its size."

Image source, Basingstoke and Deane Borough Council

Here's a little more detail on the cancelled bin collections in parts of the south of England.

In Berkshire and Oxfordshire, only parts of Slough and Oxford will be visited by waste lorries.

In Hampshire, there are no collections in Basingstoke and Deane, Rushmoor or Hart.

Delayed collections are possible in Test Valley, Winchester and the Fordingbridge area of the New Forest.

Isle of Wight Council reports that collections will be later than normal.

In Dorset, Bournemouth, Poole and Christchurch are operating normally.

With snow blanketing parts of the UK, building a snowman is a no-brainer for many.

People have been sharing their creations on social media.

Image source, @PugKeith

Bristol Airport is among several that have experienced weather-related disruption.

The runway is due to be closed until noon amid efforts to clear the snow away.

Here a video shows what the airport is doing.

Image source, Getty Images

The snow and ice is continuing to cause disruption here, but over in Australia there was record heat for January.

For the first time, the month saw average temperatures exceed 30C (86F) across the country.

Image source, Alex Beresford

It may be cold and snowy out but dogs still need to be taken on their walks.

Here's our picture gallery of dogs in the snow.

BBC News Channel

A headteacher of a primary school in Padstow, Cornwall, has told of how the community rallied to help 26 children and their teachers who got stranded on a coach on Thursday.

Ellie Mitchell, headteacher at St Merryn School, said the bus - which was on its way back from taking the pupils to a swimming lesson - couldn't get back to the village and fire crews and police weren't able to get to the children for several hours.

"They got stuck between Wadebridge and Padstow," said Ms Mitchell.

"They were actually on the coach for five hours - from half past two to half past seven with the last people getting home at nine o'clock."

"It was down to members of the village to go out with tractors, 4x4s, anything they could to get the children back home safe and sound.

"The local holiday resort were giving the children who could get there pizza and drinks. The staff on board the bus were amazing, trying to keep the children's spirits up.

"Post-swimming lesson they were hungry and tired.

"The driver had six bottles of water on board which they shared out.

"It was an amazing community effort."

Some bin and recycling collections have been cancelled across Wales and the south of England.

Here's a list of the ones affected that we know about:

• Collections in Bristol cancelled, external because of the snowy weather
• In the Cotswold area, external in Gloucestershire, waste and recycling collections have also been cancelled
• Chiltern District Council and West Berkshire Council have suspended waste collections
• Disruption in East Devon
• Mid Devon Council is running a limited refuse collection
• Merthyr Tydfil CBC has postponed collections to Monday