Water Adventures

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Sailing

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Water Adventures

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Cold Water Dipping

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Water Adventures

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Instructor-Led Sessions

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Water Adventures

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Canoeing & Kayaking

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Cardiff’s iconic reservoirs

Brought to you by Welsh Water

Notifications

Owing to essential works to the pontoon, all water activities are suspended from 22 to 31 January 2024.

Water Activities


Lisvane & Llanishen Reservoir is a former water supply reservoir set in the now suburban north of Cardiff, just a few miles from the city centre.

Water activities available on-site include canoeing and kayaking.

The only access-point to the water is via the pontoon onto Llanishen Reservoir.


Lisvane & Llanishen Reservoirs are working reservoirs and are currently used to store and supply water for the CELSA steel plant in Cardiff.

The water levels will necessarily fluctuate over time which may limit water sports activity and access to the water in peak supply periods.

If the water level gets too low, we may have to cancel water activities for safety reasons.

Choose Your Water Adventure


In the Visitor Centre, you will find changing rooms with hot showers and a place to refuel and recharge in our Visitor Centre café.

Does this float your boat? Scroll down to choose your water adventure…

Take Care

All of our activities are planned and delivered in such a way as to work with and preserve the very delicate natural environment we have on site. As such, we restrict numbers, access and types of activities to ensure our programme is delivered responsibly. If you have any questions, our team would be happy to explain.

Swimmer’s Itch

Regular monitoring shows that the water quality is excellent at Llanishen Reservoir. However, a naturally-occurring microscopic worm has been found in the reservoir and it may cause a condition known as ‘swimmer’s itch’.

What is swimmer’s itch?

Swimmer’s itch, also called cercarial dermatitis, appears as a mild skin irritation or rash caused by an allergic reaction to certain microscopic worms that infect some birds and mammals. These worms are released from infected snails into fresh and salt water (such as lakes, ponds, and oceans). Swimmer’s itch is found throughout the world and is more frequent during summer months.

To reduce the risk of swimmer’s itch

The swim course & launch point have been moved away from the shallows and into colder, deeper water.

For open water swimming sessions and activities where there is a high risk of immersion such as stand-up paddleboard hire, users are required to take the following precautions:

— wear full length wetsuits and swim caps

— cover any cuts and grazes with waterproof plasters

— clean any wounds as soon as possible after leaving the water

— try not to swallow the water

— take a warm shower with soap immediately after exiting the water, and rigorously towel dry

What are the signs and symptoms of swimmer’s itch?

Some people are more susceptible than others to getting affected. A little bit like mosquitoes who seem to go after certain people.  Symptoms can include:

— tingling, burning, or itching of the skin

— small reddish pimples or small blisters

Because swimmer’s itch is caused by an allergic reaction, if you are repeatedly exposed to the worm, you may get more severe symptoms.

Although uncomfortable, symptoms generally only last a few days, but they can last longer. You can’t spread the rash to other people, and it doesn’t need treatment. If you have swimmer’s itch, it is important that you don’t scratch the rash – scratching may cause the rash to get infected. You may find it helpful to try over the counter treatments to help relieve/reduce any itch symptoms you have – speak to your pharmacist or another health professional if you need advice.


Watersports activities are undertaken entirely at participant’s risk.

It is important to remember that swimmer’s itch is not the only thing that can give you a rash or make you feel unwell after being in contact with open water. See a health professional for advice if you feel unwell after contact with open water or if you have symptoms that are unexplained or getting worse.


For further information about Swimmer’s Itch at Lisvane & Llanishen Reservoirs, read our statement here.

OTHER WELSH WATER ADVENTURES

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