Available distances
Races on the programme
| Race | Distance | Elevation gain |
|---|---|---|
| Marathon | — | 2,493 ft |
| Half Cybi 25K | — | 2,493 ft |
About
The Cybi Coastal Marathon is a coastal trail marathon in Holyhead, Wales, held on 28 August 2027 alongside the Half Cybi 25K. It follows sections of the Anglesey coastal path, mixing footpaths, tracks, beaches and shoreline.
The route crosses bays, sandy beaches and clifftops, passes South Stack lighthouse and climbs to the summit of Holyhead Mountain.
- Marathon: 42.2 km, 760 m of elevation gain, 9am start
- Half Cybi 25K: 25 km, 760 m of elevation gain, 10am start
Highlights
- Seaside
- Off-road
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Races nearby
Other upcoming races around Holyhead.
Ring O' Fire
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MTC Angelystor
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Mtc Cymrun
Jul 4, 2028 · Porth Swtan · 6 mi away
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Jones o Gymru Anglesey Half Marathon and 10k
Mar 7, 2027 · Llechcynfarwydd · 7 mi away
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Anglesey Trail Half Marathon & 10K
Nov 1, 2026 · Llanfairpwllgwyngyll · 15 mi away
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MTC Cerridwen
Apr 14, 2027 · Caernarfon · 19 mi away
49.7 mi