6

Triathlons in Gwynedd in Summer

Find triathlons in Gwynedd in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

Filter by place

Filter by date

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape.
  • Sun 14 Jun
  • £85.99-£449.99
Caernarfon, Gwynedd

Slateman Triathlon & Duathlon

The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape.

  • Sprint triathlon
  • Olympic triathlon
  • Half Ironman
  • Ironman
  • Standard duathlon
  • Carbon offset
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Dogs allowed at venue
  • Music
  • Event village
  • Rural
  • Mountains
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 17 & over
Experience a sheltered sea swim, ride scenic coastal roads, and a multi-terrain run to a stunning beach finish in an unforgettable triathlon with electric atmosphere and standout support.
  • Sat 20 Jun
  • £7.50-£110
Pwllheli, Gwynedd

Menai Holiday Cottages Abersoch Triathlon

Experience a sheltered sea swim, ride scenic coastal roads, and a multi-terrain run to a stunning beach finish in an unforgettable triathlon with electric atmosphere and standout support.

  • Sprint triathlon
  • Olympic triathlon
  • Fun run
  • Families
  • Beginner-friendly
  • Music
  • Event village
  • Coast
  • Age 5 & over

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.