Explore Cardiff
The Welsh capital has a growing reputation for being a centre of outdoor adventure. With a host of hills on its doorstep and based on the Severn Estuary, Cardiff is a dream location for triathletes, swimmers, walkers and anyone with a keen interest in exploring the great outdoors. Discover runs, rides, swims, walks, triathlons, challenges and other outdoor activities in and around Cardiff here.
Map view
- Sat 8 Nov
- £12-£35
Cardiff MoRun
MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready, Cardiff!
- Fun run
- 5K run
- 10K run
- Half marathon
- Sun 4 Oct 2026
- £58
Oysho Cardiff Half
An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!
- 13.1 miles road running + 81 m ascent
- Sun 14 Dec
- £10-£12
Festive 10K
Come and join in just before the holidays begin, make some room before the over indulging gets underway ...
- 10 km road running
- Sun 1 Feb 2026
- £25-£35
The Cardiff 5K, 10K and Half Marathon Winter Warmer Run
A chance to lace up those shoes, get motivated, focus on training during winter and run this awesome 5k, 10k or half marathon running event with us.
- 5K run
- 10K run
- Half marathon
- Sun 1 Mar 2026
- £10-£35
St Davids Day Run
To celebrate St David’s Day join in Bute Park Cardiff and take on a 5k, 10k and Half Marathon run, or the mini run for little dragons.
- Fun run
- 5K run
- 10K run
- Half marathon
- Sat 9 May 2026
- £40-£50
Radyr Trail Races: Half Marathon and Marathon
Radyr Trail Half Marathon & Trail Marathon start in Wales' capital city, Cardiff but you'll soon feel a million miles away as you leave the hustle and bustle behind you for idyllic trails and scenery.
- Half marathon
- Marathon