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Welcome to TriSwim


We are TriSwim.

TriSwim is an award-winning, pool & open water swim community. We operate in stunning venues across the South East of England, and provide expert, industry-leading, multi-disciplinary coaching, as well as manage safe, fun and natural swimming venues. We ensure that every individual athlete, triathlete or swimmer improves their health and well-being within a supportive and friendly open water community.


We are for everyone.

We have a venue for you, whether you are looking for a casual open water venue in which to enjoy natural recreational swimming, or whether you require a competitive training venue to help improve your athletic performance. Everyone, of all ages and swim levels, is welcome at our venues, and we actively encourage juniors from age 7/8+ to join us in the open water environment. We can provide both the platform and the guidance to enable each and every person to work towards and achieve their swimming goals, whatever those might be.


Our aim is simple.

Our overall aim is to empower you to explore the open water environment and enjoy the experience that only swimming in beautiful open water can provide.

This said, starting to swim in open water can be a daunting prospect for anyone new to it. TriSwim’s expert coaches and safety staff encourage, teach and support every swimmer, so that apprehension can quickly become confidence.

We regularly organise group swimming courses for juniors and adults new to open water swimming, and we will provide everyone who completes the course with a ‘Level 1’ Introduction to Open Water Swimming Certification. We have expert open water and triathlon coaches on-site who will happily swim with you and offer free advice and coaching tips for anyone who is feeling nervous or even overwhelmed. With TriSwim, there’s no need to explore the open water environment on your own – we are here to make those first strokes into open water confident, safe and as exhilarating as we know they should be.


Open water, but as safe as a pool.

TriSwim has created a ‘swimming pool’ environment for the open water; we provide monthly microbiology testing approved by the British Bathing Directive and publish the results at our lakes, so you can be assured you are swimming in clean, safe water. We also provide a full team of kayak and land-based life responders and first aiders, individual changing tents at lake-side, clothes and bag storage, towel and shoe storage by the water, wetsuit and swim accessory hire, discounted purchase of wetsuits and swim accessories and free refreshments.

We continue to work with the RLSS (Royal Lifesaving Society), BTF (British Triathlon Federation) and the ASA (Amateur Swimming Association) to re-define the standards of open water swimming and ensure it is accessible, enjoyed by all levels and ages of swimmer, and above all, provides the highest degree of safety, experience and controlled swimming. Looking after the well-being of our swimmers and athletes is at the heart of all we do.


Assessments and Membership

All visitors to TriSwim venues will be required to purchase an annual membership for £15. This gives you access to ALL TriSwim venues for a year, including our indoor pool based in Sevenoaks.

If you wish your child to swim solo, they will need an assessment and membership (£30).

Please note that swimmers will need to purchase an additional assessment with membership (£30) in order to swim at Chipstead Sailing Lake, because of its size and depth.

You can book your assessment and purchase your membership via our website here or by calling or emailing us at TriSwim.