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
- £30-£35
Cardiff MoRun | Half Marathon
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 for the half marathon, Cardiff!
- 13.1 miles road running
- Sat 8 Nov
- £25-£30
Cardiff MoRun | 5K
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 for the 5K, Cardiff!
- 5 km road running
- Sat 8 Nov
- £25-£30
Cardiff MoRun | 10K
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 for the 10K, Cardiff!
- 10 km road running
- Sat 8 Nov
- £12-£15
Cardiff MoRun | Mini 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 for the Mini MoRun, Cardiff!
- 1.5 km road running
- 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