river pollution Olympic open water swimmers and kayakers could miss out on future medals due to river pollution, warn campaigners The Clean Water Sports Alliance says, without drastic action, British waterways won't be safe enough for training or competition Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors LATEST ARTICLES1"Our right to sleep under the stars is under threat" – rallies planned as court set to rule on Dartmoor camping access2Send a selfie from the summit: Garmin's latest satellite communicator is the most advanced yet3We loved this lightweight backpacking tent from The North Face when we took it into the wild, and it's 30% off right now4Hiker missing for a week found "a little worse for wear but in good spirits" after getting lost looking for remote pub5"Stay on boardwalks" – Yellowstone officials urge caution after hiker breaks through thin crust into scalding water