Spectators are being urged to bring their voices and line the streets in support of the 33rd annual Great Cumbrian Run.

More than 2,000 runners are expected to pound the tarmac of Carlisle and surrounding villages for this Sunday's 13.1 mile challenge.

The return of the popular half marathon will also see 500 others take part in the Family Fun Run.

Both Carlisle Castle and Carlisle Cathedral are said to be brilliant points to see the huge crowd set off, before it spreads out over the course.

It is a rare opportunity to see an event start from an English Heritage site, especially one of such significance.

Peter Murray, Cumbrian Run marketing manager, said: "Sometimes in Carlisle we forget just how amazing our own castle is, especially since it’s been standing and occupied since 1092. 

"Runners then get to pass through the Citadel, which was originally built by Henry VIII in 1541, before making their way out on the long, slightly hilly, London Road."

From there the route takes in some beautiful scenes of the Cumbrian countryside before it returns to the city for a finish at the Sheepmount Athletics Stadium.

The run involves people of all abilities, and so it is the cheers of the crowd which help lift their spirits through the hardest miles.

Historically there has been good support along key sections of the route, and organisers hope crowds will once again gather.

"There’s always a great atmosphere going through Cumwhinton, Scotby and in particular Wetheral, where we have our second water station at the village green," said Mr Murrary.

"Coming back into Warwick Road it is always nice to see people out cheering, and Brampton Road and Bitts Park are always full of spectators - as is the finish line."

Throughout the course there are some steady hills, but most runners will welcome the seven mile point between Wetheral and Scotby where the course gets a little flatter and slowly descends back down.

"It’s not a half marathon without a bit of a challenge. Many people find the long run up London Road a challenge," Mr Murray continued. "It's steeper than you think. 

"There’s also the hill climbing into Cumwhinton and our own personal favourite - and sting in the tail - the climb out of Rickerby Park and on to Brampton Road. 

"After that though it’s clear flat sailing to the finish line."

With the 13.1-mile challenge just two days ahead of them Mr Murray advises runners now to just relax. 

He said some people might do one final small run to keep the legs moving, but overall relaxing and loading up on carbohydrates is key.

He added: "If you haven’t achieved your training target, it’s too late now. Just relax and enjoy the run. 

"Whether you finish first or last everyone gets a medal and a t-shirt."

This year, for the first time, there are free photographs for all entrants thanks to sponsorship by Lloyd Motors.