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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.
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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.
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Want to list your trip on the website?

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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.
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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

Sat 20 Sep 2025 London, Canada

That Dam Hill Marathon

That Dam Hill Marathon and Ultra Races are back for 2025!

Enter now

Sat 20 Sep 2025

Springbank Park, London

08:00

Age 18 & over

£43.90

42.2 km road running

Chip timing
Enter online
Event village
Newcomers
Park

Enter now

Event overview

Event details

All fitness levels
Event village
Newcomers
Spectators

Location

Bag storage
Free parking
Park
Toilets

Route

First aid
Toilets
Water stations

What's included

Chip timing
Medal
T-shirt

Entries

Age 18 & over
Entries open
Enter online

Enter now