Circumnavigating Ynys Cybi on the Welsh national coastal footpath and Anglesey coastal path, Cybi Coastal is hoping to establish itself as one of the most scenic marathons in the UK. With a limit of 200 runners, we hope this event will attract participants from across the UK who will come to compete alongside local runners on this fantastic route.
Review summary
5
36 Reviews
- Course
- Organisation
- Atmosphere
H
Hannah G
"Utterly brutal (where else can you climb a mountain in the last 6 miles?),..."
N
Nathan J
"Stunning course, friendly atmosphere and well organised. Surprisingly tough..."
R
Rob W
"Stunning location and organised by awesome people. </p><p>Environmentally..."
See all reviews
How to enter the Cybi Coastal Marathon
- Run 26.3mi
Cybi Coastal Marathon route
The Cybi Coastal will be partially way-marked and will follow the paths, tracks, beaches and coastline of the Welsh national/Anglesey Coastal Path. The entire route passes through magnificent coastline scenery with fine views of wide bays, sandy beaches, dramatic cliffs, the famous South Stack lighthouse and the summit of Holyhead Mountain.
Starting in the port town of Holyhead this race takes you on a variety of surfaces. Easy going paved paths, a small amount of road sections, sandy beaches, fields and single tracks. Tricky cliff tops and with a few good hill climbs and to top it all off a short sharp climb to the top of Holyhead Mountain and back down to sea level. Depending on the weather, this course can be very muddy and trail shoes are highly recommended.
Starting in the port town of Holyhead this race takes you on a variety of surfaces. Easy going paved paths, a small amount of road sections, sandy beaches, fields and single tracks. Tricky cliff tops and with a few good hill climbs and to top it all off a short sharp climb to the top of Holyhead Mountain and back down to sea level. Depending on the weather, this course can be very muddy and trail shoes are highly recommended.

26 3 Miles
Start Time: 10:00am26.3mi
Mountainous
Event Details
Raceday Logistics
Cybi Coastal Marathon weather forecast
Possible drizzle overnight.
19°C
Predicted highs
16°C
Predicted lows
Meet the organizer
#13
Cybi Coastal Team are ranked #13 in the UK out of 556 organizers
Cybi Coastal Marathon reviews (36)
Reasons people recommend this event
Stunning scenery
Friendly atmosphere
Incredible crowds
J
Jackie GDid the event in 2019
My favorite marathon. My first marathon in 2018 and I returned 2019, can't wait for 2020.
Amazing atmosphere, stunning views and all for a great cause.
Its certainly challenging but well worth it.D
Donna LDid the event in 2019
Was my first marathon and second marathon 2018 & 2019. Absolutely brutal but felt such an achievement at the end. Fabulous route, even with Holyhead mountain at mile 22! 😂 Amazing scenery and great pit stops. Will be back in 2020.........R
Rob SmithDid the event in 2019
I had high expectations for this race after my running buddies kept going on about it, I am glad to say that it did not disappoint! The scenery is amazing and the organisation was fantastic. It is now me going on about this race to other running buddies. See you in 2020!B
Beth TDid the event in 2019
Absolutely stunning event! Organisation, course and marshalls are second to none. This deserves to become an iconic event as it gives Anglesey a marathon to be proud of. I'll be back again next year for my third outing. Its not a PB course, its challenging but sublime!Did the event in 2019
Stunning location and organised by awesome people.Environmentally conscious with great ethics.
A star race
Did the event in 2019
Stunning course, friendly atmosphere and well organised. Surprisingly tough route, Holyhead Mountain after 23 miles is a killer!V
Vicky KDid the event in 2019
This is a course with stunning scenery and many challenges. It’s not for the faint hearted. The organisation was amazing and everyone was really friendly. This was my first trail marathon and I really want to compete again. XR
Rachel HooperDid the event in 2019
This was my first marathon and although super tough it was an amazing experience. So friendly and amazing scenery.Did the event in 2019
Great race taking in coaster veiws, did it slightly injured but tough towards end ,but fully fit next year will be going again, volunteers were great👏👏🏃Did the event in 2019
Utterly brutal (where else can you climb a mountain in the last 6 miles?), incredible scenery, great marshalls and well stocked check points.
You may also like
- The Jones Crisps Anglesey Half Marathon & 10K1st Mar 2020, Bangor
- Anglesey Trail Half Marathon & 10k17th May 2020, Llanfairpwllgwyngyll
- Abersoch 10K & 3K Beach Race30th May 2020, Abersoch
- The Snowman Triathlon1st Aug 2020, Betws-y-Coed
- Maverick Adidas Terrex X & Snowdonia16th May 2020, Caernarfon
- The Llandudno Easter 5K Promenade Dash11th Apr 2020, Llandudno