Events
Events

More runs, rides, swims, walks and triathlons than any other site in the UK.

All running events

All cycling events

All swimming events

All walking events

All triathlons

All events

Running events

5K runs

10K runs

Half marathons

Marathons

Ultra runs

Trail runs

Road runs

Fun runs

Mud runs

Obstacle races

Cycling events

Sportives

Mountain biking events

Gravel rides

Swimming events

Sea swims

Lake swims

River swims

Walking events

Short walks

Challenge walks

Hiking events

Walking festivals

Triathlons

Novice triathlons

Super sprint triathlons400m

Sprint triathlons750m

Olympic triathlons1.5km

Half Ironman | 70.31.9km

Ironman | 140.63.9km

Multi-activity events

Duathlons

Aquathlons

Aquabikes

Swimruns

Adventure races

Popular searches

5K runs in London

10K runs in London

Half marathons in London

Half marathons in Europe

Event organisers

Got an event to list on the website?

Information for event organisers
2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
Charity
Charity

Challenge yourself and change lives at the same time.

Run for charity

Cycle for charity

Walk for charity

Swim for charity

Trek for charity

Charity events

Charity challenges

All charities

Run for charity

Runs with charity places

10K runs with charity places

Half marathons with charity places

Marathons with charity places

Ultra runs with charity places

Great North Run

Cardiff Half

Royal Parks Half

London Landmarks Half

Hackney Half

Amsterdam Marathon

Berlin Marathon

Paris Marathon

Cycle for charity

Charity bike rides

Walk for charity

Charity walks

Challenge walks

Charity hikes

Charity treks

CRUK Big Hikes

Macmillan's Mighty Hikes

Macmillan's Defeat the Peaks

Swim for charity

Charity swims

Swim Serpentine charity places

BHF Pier to Pier

Charity challenges

Charity challenges

Skydive for charity

Virtual challenges

Race the Sun

Pedal Paddle Peak

Popular searches

Charity runs in London

Charity walks in London

Charity walks in the South East

Charity walks in Scotland

Charity bike rides in London

Charities

Want to list your charity places, events and challenges on the website?

Information for charities
2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
Trips
Trips & adventures

100's of activity days, weekends, trips, holidays, retreats and training camps.

All trips

Running trips

Weekends, holidays, retreats and training camps for runners of all abilities.

Running holidays

Training camps

Cycling trips

The perfect way to see somewhere new.

London to Paris

Cycling holidays

Multi-activity

Action-packed adventures!

Multi-activity trips

Watersports

Open water adventures for those wanting to roam wide and free.

Kayaking

Coasteering

Walking

Walking weekends, holidays, retreats and adventures for rambers, walkers and hikers of all abilities.

National 3 Peaks

Yorkshire 3 Peaks

Snowdon (Yr Wyddfa)

Ben Nevis

Walking trips

Walking weekends

Walking holidays

Trekking

Journey into some of the most spectacular locations on the planet.

Mont Blanc

Mount Toubkal

Kilimanjaro

Machu Picchu

Everest Base Camp

Trekking holidays

Trekking peaks

All treks

Adventure companies

Want to list your trip on the website?

Information for trip providers
2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
Challenges
Feed
Blog
Menu
Clubs

Make new friends and get help with training.

Running clubs

Cycling clubs

Triathlon clubs

Walking clubs

Swimming clubs

All clubs

Places

From your local area to far flung corners of the world.

London

The South East

The South West

East of England

East Midlands

West Midlands

Yorkshire

The North East

The North West

Scotland

Wales

Northern Ireland

Europe

Africa

Middle East

Asia & Far East

North America

South America

All places

Blog

Event guides, gear advice, places to go and tips on wellbeing.

Event guides

Adventure guides

Place guides

Gear guides

Running

Cycling

Swimming

Walking

Family

Charity

Wellbeing

All blog posts

MyTOD community

Log your achievements, plan what's next and socialise with friends and family.

Update profile

Fitness tracker

HR zone

Add post

Join a challenges

View shortlist

Notifications

Followers
2025
One Million Challenge

Join our community challenge to spend one million hours outdoors. Connect Strava or your fitness tracker to get started.

Join for free

Our philosophy...

Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.
Sign in

Multi-terrain runs in UK in December 2025

Find multi-terrain runs near me in UK in December 2025 - filter by date or location, display on a map or use the advanced search to find your perfect race.

Filter by month

Filter by place

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Sun 21 Dec

Southsea, Hampshire, UK

Portsmouth Coastal Waterside Marathon Events | Portsmouth Coastal Waterside Marathon

26.2 miles multi terrain running

Sun 21 Dec

Norwich, Norfolk, UK

Trust10 at Blickling Estate

10 km trail running

Sun 21 Dec

Torrington, Devon, UK

Torrington Christmas Caper

10 miles multi terrain running + 120 m ascent

Search options

Back to search options

Multi-terrain runs in UK in December 2025

Filter by month

Aug

Sep

Oct

Nov

Jan

Feb

Mar

Apr

May

Jun

Jul

All dates

Filter by place

London

South East

South West

East of England

East Midlands

West Midlands

Scotland

Event listings

Portsmouth Coastal Waterside Marathon Events | Portsmouth Coastal Waterside Marathon

Trust10 at Blickling Estate

Torrington Christmas Caper

Search options