The Spring racing season got off to a glamorous start this morning as revellers descended on Cheltenham racecourse.
While the nippy March weather meant most people found it a little too early for floaty frocks, attendees put a chic spin on warmer country casuals as they arrived festooned in feathered hats and furry trims.
Proving they can hold their own against the glamour of Ascot and Aintree, revellers donned fashionable staples such as over-the-knee suede boots and even leather leggings.
While some racing fans opted to keep warm in huge Cossack-style hats, others braved the chill in body-con dresses and heels.
Revellers were joined by royalty in the form of Princess Anne and her pregnant daughter Zara Tindall, 36, who is due to give birth to her second child in the summer, along with her husband Mike.
The former equestrian champion is a regular at the four-day festival in Gloucester, and looked glowing as she wrapped up in a loose fitting navy coat which skimmed over her baby bump.
Zara eschewed fussy feathers and fascinators in favour of a smart grey fedora by London-based hatmaker Goldust Millinery.
Getting the party started! It's the first day of the Cheltenham festival in Gloucester and spirits are already running high as revellers tuck into the champagne
Disco inferno! Two friends donned looked like they were ready for the dancelfoor as they stepped out in an array of sequins, including a daring red ensemble with sheer panels at the midriff and thighs
My Fair Lady! One girl was channeling her inner Eliza Doolittle in a white jumpsuit and a dramatic hat (left). Boogie nights! A racegoer rocked '70s style in a sequinned catsuit with enormous statement sleeves (right)
A woman in navy braved the walk through the racecourse in spiky heels (left). It's not all about country casuals, as this woman in leopard print proved (right)
Revellers couldn't hide their excitement as they cheered on the runners on the opening day of Cheltenham
Country casual staples such as tweed, tartan and sensible boots were out in force, with many opting for earthy tones of brown and green
The Cheltenham Roar takes place ahead of the first race during Champion Day of the 2018 Cheltenham Festival
Racegoers look on during Champion Day which kicked off at 1.30pm with the Sky Bet Supreme Novices' Hurdles, won by Summerville Boy
A racegoer kept the spring chill at bay in a very cosy-looking pink fur stole. One of the more colourful attendees stood out from the crowd in a vibrant mustard two-piece, with a statement red bag (right)
Revellers clink glasses as they treat themselves to a glass on fizz on the first day of the Cheltenham festival in Gloucester
Pregnant Zara Tindall donned a cosy winter coat, which skimmed over her baby bump as she joined revellers on the first day of Cheltenham. Her mother Princess Anne wore a very similar outfit, wrapping up in a navy coat teamed with a grey hat
Getting the party started! Revellers were keen to get into the spirit of things as soon as the gates opened
Ladies in red! Some raceogers eschewed buttoned up country casuals in favour of body-con dresses teamed with heels. One woman donned a scalloped hem lace mini dress with nude sandals (right)
One woman put an edgy spin on traditional racing fashion as she stepped out in leather leggings. Designer Jade Holland Cooper, whose label Holland Cooper is sponsoring the Leading Jockey Award, arrived in her own designs, including £899 leather trousers and a £599 cashmere scarf
A man shared a tender moment with his female companion, throwing his arms around her as they made their way in to the racecourse
One woman stood out from the crowd in a hot pink coat worn over a floral dress. Another was the epitome of elegance in a black fur-trimmed coat and teamed with a veiled hat
And she added a splash of colour to her look by accessorising with a smart burgundy handbag.
Champion Day kicks off the four-day extravaganza, which will culminate with the Gold Cup on Friday - one of the jewels in the annual racing calendar.
A steady stream of punters were making their way through the gates before 10am on Tuesday morning, and many were keen to get the party started earlier by treating themselves to a glass of bubbly ahead of the sporting action.
Action on the track didn't get underway until 1.30pm, when Summerville Boy lunged late to claim a thrilling renewal of the Sky Bet Supreme Novices' Hurdle, the first race of the 2018 Cheltenham Festival.
A racegoer celebrates backing a winner in the first race during the during Champion Day
Mike Tindall and a male friend looked animated as they cheered on the riders at Cheltenham
Feathered friends! A woman looked striking in an elaborately decorated hat (left). Another added interest to her outfit with a leopard print snood and a dramatic headpiece
Two friends kept a close eye on the action on track as the famous racing festival got underway
Security was tight with armed police on patrol as revellers entered the racecourse. They have been a regular presence at the event since the 2016 festival
Racegoers arriving at Cheltenham Spa train station ready for the first day of the Cheltenham Festival
Off to a bubbly start! Racegoers were spotted sipping from mini bottles of Moet as they got into the swing of the festivities
A racegoer digs his umbrella into the turf to check the conditions at Cheltenham racecourse
Over-the-knee boots might not be the most obvious choice with a tweedy suit but they were very much the fashionable choice for this year's festival (left). A racegoer mixed things up by donning a pale blue suit with nude heels (right)
Competition for the horses! One woman put on a quirky display by tucking a pink unicorn toy horse under her jacket
Fur and feathers were the most popular trimmings of the day as racegoers stepped out in their finest fashions
Men were seen cleaning mud off their shoes as they arrived at the racecourse
This woman ticked all the main race day trends in over-the-knee boots, a fur trimmed checked cape and a furry hat (left). Another reveller looked equally glamorous in a grey coat with a statement white fur collar
Summerville Boy ridden by jockey Noel Fehily celebrates winning the Sky Bet Supreme Novices' Hurdle Race
Footballer turned presenter and sports pundit Jamie Redknapp looked to be enjoying his afternoon out
A smartly dressed couple taking in the action on the course as Champion Day kicked off the 2018 Cheltenham festival
ITV Racing presenter Francesca Cumani looked impeccable in an elegant green hat (left). Another reveller showed her great taste in millinery in a feathered number (right)
Noel Fehily on board Summerville Boy celebrates winning the opening race, the Sky Bet Supreme Novices' Hurdle
Tom George's horse, a 9-1 shot in the hands of Noel Fehily, was untidy at the second flight from the finish and also the last, but he devoured the hill to get up and beat Kalashnikov in the dying strides.
However, this year is set to be a sedate affair after bosses introduced a restriction on purchasing alcohol in 2017.
Following drunken scenes in 2016, when well-heeled festival-goers saw footballers urinating into glasses and women flashing their breasts, the Jockey Club decided that enough was enough.
Those hoping to buy a round of several pints will be limited to just four at a time. The cap will apply to all alcoholic drinks, including wine, beer and spirits.
Every bar will have a water point, and the closing times for complimentary bars in hospitality has been brought forward.
Security was also tight at the racecourse, which has been patrolled by armed police since 2016.
The measure was first introduced after 130 people were killed by terrorists at the Bataclan in Paris in November 2015.
A racegoer dressed in a very eye-catching tartan ensemble enjoys the 'Guinness Village' at Cheltenham racecourse
2018 marks the third year armed police have had a presence at the course, amid fears of terror attacks
Racing fans were no doubt delighted to have a day off to enjoy a beer in the sunshine ahead of the racing
Fans were eager to commemorate their day out with a selfie beside the famous statue of former gold cup winner Best Mate
Revellers started pouring through the gates before 10am even though the first race doesn't take place until 1.30pm
However, Gloucester Police have urged racegoers not to be alarmed by the sight of armed officers, saying: 'Please be reassured – purely precautionary and reassurance measure. Feel free to pop over and say hello.'
There will be around 6,000 temporary staff joining 100 permanent employees working to ensure the huge event runs smoothly, with around 260,000 people expected to visit in the coming days.
Organisers this year are making a concerted efforts to clamp down on ticket touts and have been repeating messages over the tannoys, warning that people caught selling on tickets will be ejected from the site.
Earlier today, Clerk of the Course, Simon Claisse confirmed the going was heavy although soft in places.
Love Island Star Chris Hughes made sure that all eyes were on him in an eye-catching houndstooth coat and matching waistcoat by Holland Cooper
A woman in a hot pink furry coat stood out from her male companions as they made their way through the course
Pregnant Zara Tindall looked in great spirits as she and her dapper husband Mike joined revellers at the course in Gloucester for a day of sporting action (left). Right: A glamorous blonde reveller looking elegant in a navy coat and hat
Two girls looked as if they had stepped straight out of riding school in their equestrian inspired outfits
A woman wearing the Zara coat that was so popular it had its own Instagram account teamed her outerwear with an elaborately feathered hat (left) A racegoer brightened up her monochrome outfit with red fur-trimmed gloves and a matching hat (right)
Racegoers arrive to enjoy a day of sporting action on the first day of the Cheltenham festival in Gloucester
Dressed to impress! Two friends went for dramatically different colour schemes but looked equally glamorous as they arrived for the event
Some revellers decided to give just a subtle nod to racing fashion with an understated hat. But others went all out with eye-catching millinery
One of the youngest attendees definitely looked the part in a fur-trimmed cape and comfortable fur-lined boots
A racegoer takes a selfie of herself with a statue of former gold cup winner Best Mate during Champion Day of the 2018 Cheltenham Festival
True blue! ONe woman looked impeccably co-ordinated in a creamy and navy hat that matched her coat exactly. Another was also looking elegant in shades of azure