Castle Triathlon Series Hub

Castle Triathlon Series Logo

Zone3 are absolutely delighted to be the Official Swim Partner for Castle Triathlon Series in 2019 and to support this event series across their selection of stunning and iconic castles across the UK, Ireland and France.

For the absolute beginners on shopper bikes to the grizzled triathletes on wind-cheating £10k steeds, the Castle Triathlon Series offers a wealth of race distances to suit all multi-sport abilities. 
The Castle Triathlon Series events all promise an inspirational and memorable race experience.

Hire a Wetsuit

We currently offer a choice of monthly or full season hires which are available on our Men's and Women's Advance wetsuits. 

The price of each hire consists of a hire charge, plus a deposit which we refund as soon as the hire suit is back with us. 

If you love your hire suit so much that you'd like to keep it once the hire period is up, just get in touch and we will work out the best solution for you. 

Shop Zone3 - 20% Off!

Enter the following code at the checkout to receive 20% off any of our full RRP lines: CASTLE2019

Please note: Discount codes can only be used once per customer and does not include hire or merchandise items. Offer expires 31/12/19

Swim Accessories

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Check out our range of articles and blogs to help you take it up a notch in your next event.

New to swimming in a triathlon wetsuit?

Swimming in a triathlon wetsuit for the first time can be challenging and raise many questions.

Read our article here for everything you need to know to get you race ready.

Hever Castle Olympic Distance- Race Tips

Well known amoung athletes as being one of the most physically challenging races on the Castle Triathlon circuit.

Discover local and veteran Sam Wade's top 5 tips to take on the course READ HERE