Cardiff Bay
Trail Running Calendar near Cardiff Bay 2026-2027
Explore the top trail runs near Cardiff Bay for 2026-2027! We've gathered 103 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2027
A 30 miles mountain ultra across the Brecon Beacons with steep climbs, technical descents and mandatory kit checks in Georgetown, Merthyr Tydfil on 6 November 2027.
July 2028
A single day ultra of about 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Limited field, mandatory kit and 4.0 mph cut offs; finishers receive an Afanc medal and champions receive bespoke trophies.
A point to point 34.8 mile ultra from Merthyr Tydfil to Barry Island following National Cycle Route 8. It is day six of the MTC CYMRUN series and uses preset cut offs based on a 4 mph minimum average speed.