Swim Heron

Just off Junction 13 of the M25, Swim Heron offers a rare blend of convenience and natural beauty, open water swimming at its finest. Tucked within the serene surroundings of Heron Lake in Surrey, this well-loved venue combines the feel of a summer lake retreat with the professionalism of a top tier training hub. Whether you’re new to the open water or an experienced triathlete, you’ll find a community that’s welcoming, lively, and dedicated to safe, enjoyable swimming.

The lake features clearly marked 500m and 1000m courses, perfect for both relaxed loops and distance sessions. Every swim is supported by qualified lifeguards, safety kayaks, and a dedicated rescue boat, so you can focus entirely on your rhythm, your breathing, and that smooth glide across the calm water.

After your swim, refuel with a hot drink or bite from the onsite café, browse the mini Mailsports shop for gear and wetsuits, or simply sit back and take in the lakeside atmosphere that feels more like a festival of swimming than a training session.

With its easy access, reliable safety systems, and friendly, vibrant community, Swim Heron is one of the South East’s standout open water venues – a perfect mix of energy, relaxation, and adventure.