The River


The Afon Tryweryn is a dam released river. When there is a water release from the reservoir, we nearly always have enough water for you to paddle on. Releases from Llyn Celyn Reservoir are controlled by Natural Resources Wales (NRW). There are a number of factors taken into consideration for water releases including, recreation, flood control and water extraction. The National White Water Centre has an excellent relationship with NRW, but we do not have any control over water releases. NRW advise us of the water release schedule a few days before the date, and we update our water information points ( Facebook , website and phoneline 01678 520826) as soon as we find out.
Tryweryn river map at the National White Water Centre


The Afon Tryweryn is split in to 2 sections, the Upper River and the Lower River. The Upper River is roughly 2km of grade 3-4 rapids and runs alongside the centre. The Lower section begins below the centre alongside Tyn Cornel campsite and continues with grade 2-3 rapids 6km down to Bala car park. There is one grade 4 rapid near the end of this section which is easily portaged using the leat; please ask for details in reception if you wish to use this or look out for the leat signs river right before Bala Mill Falls.


We do our best to ensure the Upper and Lower Tryweryn are free of obstructions, however it is a natural environment so please be aware of any dangers and let the centre know if you spot any new obstructions. When you sign in at reception please check the water information board for details of any known hazards.


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