Cancer Research UK’s Big Hike Challenge 2025
5 stunning UK locations

Cancer Research UK’s Big Hike Challenge 2025

If you love walking, taking in spectacular scenery and want to help fund life-saving science, Cancer Research UK's Big Hike adventure is for you!

HELP BEAT CANCER STEP BY STEP

Choose a half or full marathon at one of five stunning UK locations, or bring younger hikers from the age of 12 to take on a 10K route. Sign up with friends and family, or go solo and meet new people, to help beat cancer step by step.

Whether you're new to hiking or a regular walker, you'll be supported every big step of the way with:

  • Friendly volunteers
  • Fully signposted routes
  • Expert training support
  • Detailed training plan
  • Support points with drinks/snacks
  • Hot meal at the finish

Sign up today from £20 + £200 fundraising

Marathon walks

Hike a marathon distance from 25.7 to 26.6 miles over a hilly route to help beat cancer step by step. Age 16+

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.
  • Sat 17 May 2025
  • £25
Callander, Stirling, UK

Big Hike | The Trossachs | Marathon

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.

  • 26.2 miles hiking + 2000 ft ascent
Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.
  • Sat 14 Jun 2025
  • £25
Bakewell, Derbyshire, UK

Big Hike | Peak District | Marathon

Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.

  • 25.8 miles hiking + 1800 ft ascent
Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.
  • Sat 5 Jul 2025
  • £25
Brecon, Powys, UK

Big Hike | Brecon Beacons | Marathon

Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.

  • 25.8 miles hiking + 3000 ft ascent
Hike through the rolling hills and picturesque villages of the Cotswolds. Walk right past Broadway Tower and take in stunning views from Dover’s Hill to help beat cancer step by step.
  • Sat 12 Jul 2025
  • £25
Moreton-in-Marsh, Gloucestershire, UK

Big Hike | Cotswolds | Marathon

Hike through the rolling hills and picturesque villages of the Cotswolds. Walk right past Broadway Tower and take in stunning views from Dover’s Hill to help beat cancer step by step.

  • 26.6 miles hiking + 1900 ft ascent
Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.
  • Sat 21 Jun 2025
  • £25
Wareham, Dorset, UK

Big Hike | Jurassic Coast | Marathon

Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.

  • 25.9 miles hiking + 2400 ft ascent

Half marathon walks

Hike a half marathon distance from 12.8 to 13.8 miles on an undulating route to help beat cancer step by step. Age 14+

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.
  • Sat 17 May 2025
  • £20
Callander, Stirling, UK

Big Hike | The Trossachs | Half Marathon

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.

  • 13.8 miles hiking + 1100 ft ascent
Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.
  • Sat 14 Jun 2025
  • £20
Bakewell, Derbyshire, UK

Big Hike | Peak District | Half Marathon

Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.

  • 13.1 miles hiking + 1302 ft ascent
Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.
  • Sat 5 Jul 2025
  • £20
Brecon, Powys, UK

Big Hike | Brecon Beacons | Half Marathon

Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.

  • 13.4 miles hiking + 1500 ft ascent
Hike through rolling hills and picturesque villages of the Cotswolds, including Aston Magna, Paxford and Ebrington, to help beat cancer step by step.
  • Sat 12 Jul 2025
  • £20
Moreton-in-Marsh, Gloucestershire, UK

Big Hike | Cotswolds | Half Marathon

Hike through rolling hills and picturesque villages of the Cotswolds, including Aston Magna, Paxford and Ebrington, to help beat cancer step by step.

  • 12.8 miles hiking + 1200 ft ascent
Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.
  • Sat 21 Jun 2025
  • £20
Wareham, Dorset, UK

Big Hike | Jurassic Coast | Half Marathon

Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.

  • 13 miles hiking + 1500 ft ascent

10K walks

Hike 6-7 miles over flatter terrain to help beat cancer step by step. Age 12+

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.
  • Sat 17 May 2025
  • £20
Callander, Stirling, UK

Big Hike | The Trossachs | 10K

Venture to the exquisite landscapes of Loch Lomond and The Trossachs National Park, through Callander and past stunning Lochs and waterfalls to help beat cancer step by step.

  • 10 km hiking + 450 ft ascent
Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.
  • Sat 14 Jun 2025
  • £20
Bakewell, Derbyshire, UK

Big Hike | Peak District | 10K

Hike through magnificent woodlands, past pretty waterfalls and limestone cliffs, and take in beautiful views across the Peak District to help beat cancer step by step.

  • 6.1 miles hiking + 200 ft ascent
Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.
  • Sat 5 Jul 2025
  • £20
Brecon, Powys, UK

Big Hike | Brecon Beacons | 10K

Hike along the peaceful canal towpath across the River Usk into the majestic mountains and enjoy views of Bannau Brycheiniog (the Brecon Beacons) to help beat cancer step by step.

  • 6.3 miles hiking + 800 ft ascent
Hike through the rolling hills and picturesque villages of the Cotswolds. Walk right past Broadway Tower and take in stunning views from Dover’s Hill to help beat cancer step by step.
  • Sat 12 Jul 2025
  • £20
Moreton-in-Marsh, Gloucestershire, UK

Big Hike | Cotswolds | 10K

Hike through the rolling hills and picturesque villages of the Cotswolds. Walk right past Broadway Tower and take in stunning views from Dover’s Hill to help beat cancer step by step.

  • 6.7 miles hiking + 250 ft ascent
Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.
  • Sat 21 Jun 2025
  • £20
Wareham, Dorset, UK

Big Hike | Jurassic Coast | 10K

Explore England's only natural UNESCO World Heritage Site, famous for the outstanding beauty of its cliffs, fossils and landforms, to help beat cancer step by step.

  • 10 km hiking