Flooding and High Water: Staying Safe on Welsh Rivers
Phil Stone • 6 November 2025

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As paddlers, we’re drawn to the dynamic beauty of Wales’ rivers, from the tumbling rapids of the Dee to the tranquil stretches of the Wye. But with increasing rainfall and unpredictable weather patterns, flooding and high water events are becoming more frequent and more dangerous. Whether you're a seasoned whitewater kayaker or a weekend SUP enthusiast, understanding the risks and knowing how to respond is essential.

Why High Water Is a Serious Risk


Flooded rivers can look deceptively inviting. But beneath the surface lies a host of hazards:

  • Fast currents that can overpower even experienced paddlers.
  • Cold water shock, which can incapacitate you within seconds.
  • Hidden debris, including branches, fencing, and submerged obstacles.
  • Contaminants, such as sewage, agricultural runoff, and industrial waste.


Even ankle-deep floodwater can knock you off your feet. On rivers, the force multiplies, making rescue difficult and increasing the risk of drowning.


Before You Paddle: Check Conditions

Always check river levels and flood warnings before heading out:


If the water is rising, discoloured, and moving faster than usual, don’t paddle.


On the Water and Bankside: Safety First

If you do paddle during high water, take extra precautions:

  • Always wear your helmet and buoyancy aid when bankside, especially near fast-moving water or slippery terrain. Falls and unexpected slips are common during high water, and a helmet can prevent serious injury.
  • Avoid paddling alone and always let someone know your route and expected return time.
  • Monitor weather and water conditions continuously, abandon the activity if conditions worsen.


Health Hazards and Hygiene

Floodwater often contains harmful bacteria and pollutants. To reduce health risks:

  • Wash thoroughly after paddling.
  • Cover cuts and use antibacterial wipes before eating.


Biosecurity and Environmental Protection

High water can spread invasive species and damage fragile habitats. Follow the “Check, Clean, Dry” protocol and use washdown stations where available.


Reporting and Resources


Flooding isn’t just a seasonal inconvenience; it’s a growing safety challenge. By staying informed, respecting the water, and paddling responsibly, we can protect ourselves, our communities, and the rivers we love.

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