Taking on a challenge is not only really satisfying, it’s also a great way to raise funds for us!

If you have already entered a challenge or are planning some sort fund raising event you can raise money for us by uploading the details on our Just Giving Page. This is a great way to support us and it doesn’t matter whether you are planning to hold a zoom quiz or jumping in the sea for a cold water swim with friends. Let us know what you are doing by email and we will do what we can to help by promoting your event on our social media channels.

Looking for a challenge – to test yourself, to get in shape, or bond with friends on a weekend adventure? If so, an Ultra Challenge is for you – and you don’t need to be a budding elite athlete – they’re for everyone, take it on at your pace!

Whether along stunning coastlines, or trails through wonderful countryside, your Ultra Challenge will be unforgettable – with full support all the way, camaraderie, an amazing sense of achievement, and all in support of Just One Ocean.
Walk, Jog or Run at YOUR pace on the Ultra Challenge Series event of your choice. Join 35,000 others of all ages & take on an unforgettable Challenge in 2025! It will be rewarding, fun, and absolutely achievable with your resolve and determination alongside first class support. There’s regular rest stops with free food & drink, a fully signed route, and a great atmosphere.
As Just One Ocean are an official partner on the 2025 Ultra Challenge Series, you get a 50% discount on the ‘Full Sponsorship’ registration fee when signing up to support us.
Click to view the full list of Ultra Challenges and sign up.
Push yourself further – and take on a 10km, 25km, 50km 75km or even a 100km Ultra Challenge in 2025!
WHAT YOU’LL GET:
✓ Sign up from £10
✓ Inclusive & fun event with a great atmosphere and camaraderie
✓ Choose your distance, from 10km to 100km
✓ Walk, jog, or run – it’s your challenge, your way!
✓ A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
✓ Regular covered rest stops, with free food & drink, massages and medics
✓ An epic finish line moment, with a glass of fizz, medal and t-shirt
✓ Camping, transfer and parking options to make getting there & away easy
✓ Full fundraising support, and a choice of fundraising options
Click here to view the full list of Ultra Challenges and sign up.

25 & 26 Jan 2025

29 Mar 2025

12 Apr 2025

3 & 4 May 2025

17 & 18 May 2025

24 & 25 May 2025

7 & 8 Jun 2025

21 & 22 Jun 2025

28 & 29 Jun 2025

12 Jul 2025

19 & 20 Jul 2025

2 Aug 2025

23 Aug 2025

6 & 7 Sep 2025

13 & 14 Sep 2025

13 Sep 2025

12 Sep 2025

27 Sep 2025

11 Oct 2025

25 Oct 2025