Afon Tywi - Llyn Brianne Dam to Junction Pool

South of Severn/ Rheidol catchment
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Mark R
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Afon Tywi - Llyn Brianne Dam to Junction Pool

Post by Mark R »

Mark Rainsley
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Re: Afon Tywi - Llyn Brianne Dam to Junction Pool

Post by dudekzbranne »

Hi everyone. We attempted this stretch on an inflatable open top canoe (Gumotex Palava), starting just below the reservoir. The Ystradffin water gauge was showing 0.4 m on that day. It appeared like that was the right amount of water for this section. The gorge and the river were stunning. The rapids in the rivers below the weir gradually got more and more committing. Above the massive rapid, we realized in time that what is going to follow is over our and the boat's capabilities and we retreated to the path on the left.

Fortunately, the increase in the seriousness is gradual. The weir is followed by a straight section of relatively flat river ended by a gradual right bend. As the gorge starts turning left, it provides a window of opportunity to get out on the left bank to inspect the river. Eventually, following some grade (IV ?) rapids, the left bend becomes really sharp (nearly right angle), which signals a point of no return.
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