What is it? A snowy-themed 10km run around London to raise money for Cancer Research UK.

When is it? Sunday 1 February 2015

Anything else I should know? The route takes in some of the capital's most iconic sights, including the Tower of London, Houses of Parliament and St Paul's Cathedral. But just in case that isn't scenic enough, runners will also weave in and out of frosty ice caves and 'snow zones' around the course. Oh, and you can look forward to receiving a polar bear hug when you cross the finish line.

How do I enter? Late entry, price £45, is available until midnight on 19 January 2015. Find out more here winterrunseries.co.uk

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What is it? An overnight power walk around London to raise money for breast cancer charities. Walkers can choose to complete a half-marathon (13.1 miles) or full marathon (26.2 miles).

When is it? Saturday 16 May 2015

Anything else I should know? As in previous years, everyone who takes part in The MoonWalk is expected to wear a decorated bra. This year's theme? Saturday Night At The Movies. Men can take part, too - as long as they wear a bra.

How do I enter? Online entries are open now, price £47.50 for both the marathon and half-marathon. Find out more here www.walkthewalk.org

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What is it? A nationwide series of 300 women-only 5km and 10km
non-competitive races to raise money for Cancer Research UK.

When is it? Various dates throughout summer 2015.

Anything else I should know? If you want to challenge yourself a little further, you might like to know that Race for Life is also organising its first women-only half-marathon and marathon this autumn; dates are still to be confirmed. Alternatively, Pretty Muddy is a series of 5km obstacle courses involving a lot of - you guessed it - mud.

How do I enter? Entries cost from £14.99. Find your nearest event and enter now raceforlife.cancerresearchuk.org

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What is it? Rightly billed as 'the world's greatest half-marathon', the Great North Run heads from Newcastle to South Shields. Its younger sibling, the Great South Run, is a 10-mile race in Portsmouth.

When is it? This year's Great North Run takes place on Sunday 13 September 2015. The Great South Run is a few weeks later, on Sunday 25 October 2015.

Anything else I should know? Can't get to Portsmouth or Newcastle? The Bupa Great Run series also includes events in other cities around the UK, including Edinburgh, Birmingham and Sheffield.

How do I enter? Entries for the Great South Run are open now, price £41. Entries for the always-popular Great North Run are decided through a ballot system, which opens for around one month in early January. Find out more here www.greatrun.org

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What is it? A series of four family walks - in London, the Severn Bridge, Windsor and Oxford - to raise money for the Red Cross. Distances range from four to eight miles.
When is it? Various dates throughout May and June 2015.

Anything else I should know? The emphasis here is on fun, fundraising and sightseeing - so you shouldn't have to train too hard. The dress code? Red, red and more red. And if your walking shoes don't happen to be red, don't worry: you'll be given a free pair of shoe covers when you enter.

How do I enter? Entries cost £10, including a free Red Cross T-shirt. You can register online now or just turn up on the day. Find out more here: www.redcross.org.uk

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What is it? A nationwide series of walks - ranging in distance from 2km to 10km - to raise money for Alzheimer's Society.

When is it? Various dates throughout September and October 2015.

Anything else I should know? If you can't find a Memory Walk in your local area, you can organise your own. Just call 0845 3060 898 for an organiser's toolkit.

How do I enter? Registration is free - although the charity asks everyone to try to raise at least £50 towards fighting dementia. You can register your interest online now, and sign up from April. Find out more here memorywalk.org.uk

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What is it? A 54-mile cycle ride from Clapham Common in London to the seafront at Brighton. The aim? To raise money for the British Heart Foundation.

When is it? Sunday 21 June 2015

Anything else I should know? Europe's oldest and largest charity bike ride celebrates its 40th birthday this year. More than 25,000 people are expected to take part, so the roads can get a little crowded. The biggest challenge, though, is the climb up Ditchling Beacon: at 813ft, it's the ride's highest point.

How do I enter? Registration opens on 17 January 2015, which is when entrance costs will be announced, too. Find out more here www.bhf.org.uk

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What is it? A series of five cycle rides of varying distances, in Stratford-upon-Avon, York, Stirling and the Isle of Wight, to raise money for Parkinson's UK.

When is it? Various dates throughout summer 2015.

Anything else I should know? Although still a challenge, these events focus on having fun with friends and family, and enjoying the rural scenery. The circular routes are fully signposted and refreshments will be provided around the course.

How do I enter? Full details will be released in February, but you can register your interest online now. Find out more here www.parkinsons.org.uk

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What is it? A series of 5km, 10km and 15km runs in various locations throughout the UK, to raise funds for the Stroke Association.

When is it? Various dates throughout  spring 2015.

Anything else I should know? As the name suggests, Resolution Runs are designed to encourage runners to stick to their New Year's fitness resolution and train for an event. But you can walk, jog or run the distance of your choice with no pressure to finish within a certain time.

How do I enter? Entry costs at £15, including a Stroke Association T-shirt. You can enter online now. Find out more here: www.stroke.org.uk

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What is it? A 10km summer run through the centre of London. The event's official 2015 charity is Cancer Research UK, but you can run for another good cause if you prefer.

When is it? Sunday 12 July 2015.

Anything else I should know? This popular race's biggest selling point is the iconic route - which starts in Piccadilly and finishes in Whitehall. In fact, it's being billed as 'the world's greatest road race route'.

How do I enter? Race entry costs - gulp! - £50, but that does include a number of goodies such as a free online personal trainer and discounts to London attractions. Find out more here: www.thebritish10klondon.co.uk

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