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Open Water Swimming Lessons (Beginner)

  • 09:30-12:00

Perfect for building confidence in open-water swimming.

  • Instructor
  • Beginnners
  • Safety boat


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Open Water Swimming Lessons (Experienced)

  • 12:30-15:00

Great for building on your confidence and technique

  • Instructor
  • Experienced swimmers
  • Safety boat


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Open Water Swimming Supervised Sessions

  • 18:30-20:00

Swim without an instructor while supervised for safety

  • Safety boat


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Discover Wild Swimming

  • 1 DAY

Experience a full day of instructed wild swimming in Llynnau Mymbyr, with the spectacular backdrop of the Snowdon Horseshoe, designed to allow you to build your confidence and improve your technique.

  • Safety boat

From £105

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All participants should arrive at least 15 minutes before the start of their session and bring:

  • A wetsuit (optional if the water temperature is above 18 degrees).
  • Goggles
  • Swimming cap
  • Towel
  • Tow Bag (optional)

Important information about using the lake

The lake is not supervised for general use by the public, and anybody entering the water does so entirely at their own risk.

Plas y Brenin will not be responsible for any accidents, damage or loss incurred during any unsupervised lake usage.

We also kindly request that visitors always keep all access points to the lake clear, as these are in regular use for the loading and unloading of canoes and kayaks. This includes the slipway and the land area between the boat store and shoreline on the lake’s southern edge. Please always remain considerate towards other users of the lake.

If you would like to use the lake under expert supervision or develop the skills to stay safe in open water, please book one of our courses or supervised swimming sessions.