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In the summer months, millions of Britains flock to the UK's 11,000 miles of coastline. As more and more of us have lost our connection with, and understanding of, the seas that surround us, it's all too easy to be caught out by the water - making it the busiest time of year by far for the RNLI.

The army of unpaid volunteers has to contend with everything from overly ambitious novice sailors caught in a storm, to a little girl who has become trapped in the rocks below the high-water mark. The dangers of the water are further put into perspective when a father gets himself into serious difficulties after swimming out to try and rescue his young son, whilst a YouTube prankster deliberately flings himself from Tower Bridge for 'a dare'.