Water Level Information

Contact us on 01678 521083         Email: info@ukrafting.co.uk

Tryweryn Water Release Information        Updated 11th November '14

*Reservoir Level Update*

From the 1st November NRW had about 10 metres of the reservoir to fill before they could think about releasing. They have now filled 7 metres of it, so only 3 more to go before we might get some water releases! We will let you know if we find out there will be any water release but it's likely to be a couple of weeks before this happens (depending on the weather).


From the 1st November until the 12th December (inclusive) the water releases at the centre will be unpredictable and we won't know about water information from Natural Resources Wales until the day. Even then they can change without prior notice during the day. 

Providing the water release is at least 7 cumecs then you're still able to paddle on the river and the centre will be open, however we won't know about this until closer to the time than usual. 

If you get to the centre but are unsure of the level, you can check the gauge on the corner of the river just above cafe wave. If the water is flowing in the green tick then you're good to get on.


Please remember to come to reception to sign-in and bring your membership card if you have one. For more information about signing in at the centre and facility fees click here

Water Information Line 01678 520826    

Releases from Llyn Celyn are controlled by Natural Resources Wales. There are a number of factors taken into consideration for releases including recreation, fisheries, power generation, flood control and water extraction. The National White Water Centre has an excellent relationship with NRW but the National White Water Centre does not have any control over water releases.

Natural Resources Wales advise us of the water releases and, as soon as we have received the release information, we up-date this web-page, our facebook page and the water information line - 01678 520826

rescue training

Rescue Training on the topsite (above The Chipper) is permitted at 5 cumecs or above.

Spate Conditions on the Lower river

Please be aware that with significant rainfall the levels in the lower river will be substantially higher than in the upper/centre section and can reach in excess of 50 cumecs and the river is likely to be in the trees/fields.

Release level restrictions to prevent environmental damage
No canoeing/kayaking below 7 cumecs
No rafting below 9 cumecs

Grading Guide

Release (cumecs) Upper section Lower section
7 3

grade 2 – 3

(with one grade 4 rapid)

7.5 – 10 3 / 4

grade 2 – 3

(with one grade 4 rapid)

10 – 16 3+ / 4

grade 2 – 3

(with one grade 4 rapid)


Invasive Non-native species

Please follow this link here for information on assisting the National White Water Centre and the North Wales Wildlife Trust with invasive non-native species in rivers in North Wales.

For help with any other enquiries please call the centre office on 01678 521083.

Accept & Close


This website uses 'cookies' to give you the best, most relevant experience. Using this website means you're happy with this. You can find out more about the cookies used by clicking this link.