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Swim healthy

How to reduce the risk of illness in lakes, rivers and the sea.

Advice for people who swim in open water.

Before you swim

Check the water quality before heading to the beach, lake or river. 

Swimfo is a free service from the Environment Agency with information on 450+ bathing sites.     

Check local water quality reports

Do these checks before you swim:

  • Stay out of water that looks cloudy, has foam or scum, or smells bad
  • Don’t swim after heavy rain – it can wash sewage and dirty water into rivers and seas
  • Watch out for signs of pollution like animal waste, dead fish, or rubbish in the water

Think before you dip

Checking the water quality when wild swimming is really important to ensure you stay well.

Even the most beautiful rivers and lakes can hide harmful pollution. 

Swimming in polluted water can lead to:

  • Stomach bugs like diarrhoea and vomiting
  • Skin rashes and eye infections

While you swim

Protect yourself from exposure to contaminated water and reduce the risk of illness

  • Cover cuts and scratches with a waterproof plaste.
  • Take notice of safety signs
  • Avoid stream water on beaches
  • Avoid swallowing water or splashing it into your mouth
  • Think about wearing protective clothing like a wetsuit, gloves and protective footwear

After you swim 

Wash well after swimming outdoors.

Clean your hands with soap and water, especially before eating or handling food.

Clean any cuts or abrasions to the skin.

Rinse swimwear and let it dry thoroughly.

If you get ill after swimming

Seek medical help and let them know you’ve been swimming in open water.