water danger Olympic marathon swim training axed as Seine water quality fiasco rumbles on As concerns about the River Seine's water quality continue, today's marathon swimming training is cancelled but officials say races should still go ahead Cold water shock – what is it and how can you avoid it? We take a look at the dark side of cold water immersion, plus how to prevent cold water shock on your next wild dip 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 ARTICLES1After camping with this piece of gear, I’m never using a sleeping bag again – 3 reasons why I'm not going back2The mighty Garmin Fenix 7X Solar is back to its lowest price, but be quick – the deal ends tomorrow3You’ve never seen a home climbing gym quite like the one Free Solo star Alex Honnold’s built4"Someone is going to get hurt or killed" – 14 hikers arrested for illegally climbing famous closed trail5Hurry, the super powerful, super bright Garmin Forerunner 265S just hit its lowest price ever on Amazon